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Read the following passage carefully, and then select the best option A, B, C or D to complete itConservation, sustainable use and protection of (1) _______ resources including plants, animals, mineral deposits, soils, clean (2) _______, clean air, and fossil fuels such as coal, petroleum, and natural gas. Natural (3) _______ are grouped into two categories, renewable and nonrenewable. A (4) _______ resource is one that may be replaced over time by natural processes, (5) _______ fish populations or natural vegetation, or is inexhaustible, such as (6) _______ energy. The goal of renewable resource conservation is to ensure (7) _______ such resources are not consumed faster than they are (8) _______. Nonrenewable resources are those in limited supply that cannot be replaced (9) ______ can be replaced only over extremely long (10) _______ of time. Nonrenewable resources include fossil fuels and mineral deposits, such as (11) _______ ore and gold ore. Conservation activities for nonrenewable resources focus (12) _______ maintaining an adequate supply of these resources well into the future.Natural resources are conserved for their biological, economic, and recreational values, (13) _______ their natural beauty and importance to local cultures. (14) _______, tropical rain forests are protected for their important role in both global ecology and the economic livelihood of the local culture; a coral reef may be (15) _______ for its recreational value for scuba divers; and a scenic river may be protected for its natural beauty.... Question 25:

Xem chi tiết 235 lượt xem 4 năm trước

Read the following passage carefully, and then select the best option A, B, C or D to complete itConservation, sustainable use and protection of (1) _______ resources including plants, animals, mineral deposits, soils, clean (2) _______, clean air, and fossil fuels such as coal, petroleum, and natural gas. Natural (3) _______ are grouped into two categories, renewable and nonrenewable. A (4) _______ resource is one that may be replaced over time by natural processes, (5) _______ fish populations or natural vegetation, or is inexhaustible, such as (6) _______ energy. The goal of renewable resource conservation is to ensure (7) _______ such resources are not consumed faster than they are (8) _______. Nonrenewable resources are those in limited supply that cannot be replaced (9) ______ can be replaced only over extremely long (10) _______ of time. Nonrenewable resources include fossil fuels and mineral deposits, such as (11) _______ ore and gold ore. Conservation activities for nonrenewable resources focus (12) _______ maintaining an adequate supply of these resources well into the future.Natural resources are conserved for their biological, economic, and recreational values, (13) _______ their natural beauty and importance to local cultures. (14) _______, tropical rain forests are protected for their important role in both global ecology and the economic livelihood of the local culture; a coral reef may be (15) _______ for its recreational value for scuba divers; and a scenic river may be protected for its natural beauty.... Question 24:

Xem chi tiết 266 lượt xem 4 năm trước

Read the following passage carefully, and then select the best option A, B, C or D to complete itConservation, sustainable use and protection of (1) _______ resources including plants, animals, mineral deposits, soils, clean (2) _______, clean air, and fossil fuels such as coal, petroleum, and natural gas. Natural (3) _______ are grouped into two categories, renewable and nonrenewable. A (4) _______ resource is one that may be replaced over time by natural processes, (5) _______ fish populations or natural vegetation, or is inexhaustible, such as (6) _______ energy. The goal of renewable resource conservation is to ensure (7) _______ such resources are not consumed faster than they are (8) _______. Nonrenewable resources are those in limited supply that cannot be replaced (9) ______ can be replaced only over extremely long (10) _______ of time. Nonrenewable resources include fossil fuels and mineral deposits, such as (11) _______ ore and gold ore. Conservation activities for nonrenewable resources focus (12) _______ maintaining an adequate supply of these resources well into the future.Natural resources are conserved for their biological, economic, and recreational values, (13) _______ their natural beauty and importance to local cultures. (14) _______, tropical rain forests are protected for their important role in both global ecology and the economic livelihood of the local culture; a coral reef may be (15) _______ for its recreational value for scuba divers; and a scenic river may be protected for its natural beauty.... Question 23:

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Read the following passage carefully, and then select the best option A, B, C or D to complete itConservation, sustainable use and protection of (1) _______ resources including plants, animals, mineral deposits, soils, clean (2) _______, clean air, and fossil fuels such as coal, petroleum, and natural gas. Natural (3) _______ are grouped into two categories, renewable and nonrenewable. A (4) _______ resource is one that may be replaced over time by natural processes, (5) _______ fish populations or natural vegetation, or is inexhaustible, such as (6) _______ energy. The goal of renewable resource conservation is to ensure (7) _______ such resources are not consumed faster than they are (8) _______. Nonrenewable resources are those in limited supply that cannot be replaced (9) ______ can be replaced only over extremely long (10) _______ of time. Nonrenewable resources include fossil fuels and mineral deposits, such as (11) _______ ore and gold ore. Conservation activities for nonrenewable resources focus (12) _______ maintaining an adequate supply of these resources well into the future.Natural resources are conserved for their biological, economic, and recreational values, (13) _______ their natural beauty and importance to local cultures. (14) _______, tropical rain forests are protected for their important role in both global ecology and the economic livelihood of the local culture; a coral reef may be (15) _______ for its recreational value for scuba divers; and a scenic river may be protected for its natural beauty.... Question 22:

Xem chi tiết 225 lượt xem 4 năm trước

Read the following passage carefully, and then select the best option A, B, C or D to complete itConservation, sustainable use and protection of (1) _______ resources including plants, animals, mineral deposits, soils, clean (2) _______, clean air, and fossil fuels such as coal, petroleum, and natural gas. Natural (3) _______ are grouped into two categories, renewable and nonrenewable. A (4) _______ resource is one that may be replaced over time by natural processes, (5) _______ fish populations or natural vegetation, or is inexhaustible, such as (6) _______ energy. The goal of renewable resource conservation is to ensure (7) _______ such resources are not consumed faster than they are (8) _______. Nonrenewable resources are those in limited supply that cannot be replaced (9) ______ can be replaced only over extremely long (10) _______ of time. Nonrenewable resources include fossil fuels and mineral deposits, such as (11) _______ ore and gold ore. Conservation activities for nonrenewable resources focus (12) _______ maintaining an adequate supply of these resources well into the future.Natural resources are conserved for their biological, economic, and recreational values, (13) _______ their natural beauty and importance to local cultures. (14) _______, tropical rain forests are protected for their important role in both global ecology and the economic livelihood of the local culture; a coral reef may be (15) _______ for its recreational value for scuba divers; and a scenic river may be protected for its natural beauty.... Question 21:

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Read the passage below carefully, and then choose the best answerConservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.Question: What is the passage above mainly about?

Xem chi tiết 576 lượt xem 4 năm trước

Read the passage below carefully, and then choose the best answerConservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.Question: Which sentence below is true?

Xem chi tiết 494 lượt xem 4 năm trước

Read the passage below carefully, and then choose the best answerConservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.Question: When do conflicts decline?

Xem chi tiết 400 lượt xem 4 năm trước

Read the passage below carefully, and then choose the best answerConservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.Question: What may bring water to agricultural irrigation?

Xem chi tiết 264 lượt xem 4 năm trước

Read the passage below carefully, and then choose the best answerConservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.Question: Which sentence below is not correct?

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Read the passage below carefully, and then choose the best answerConservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.Question: Which word in the reading means “a promise that something will be done or will happen, especially a written promise by a company to repair or change a product that develops a fault within a particular period of time”?

Xem chi tiết 701 lượt xem 4 năm trước

Read the passage below carefully, and then choose the best answerConservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.Question: Which word in the reading means “living or growing in, happening in, or connected with water”?

Xem chi tiết 445 lượt xem 4 năm trước

Read the passage below carefully, and then choose the best answer Conservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.Question: What does “methods” in line 7 mean?

Xem chi tiết 378 lượt xem 4 năm trước

Read the passage below carefully, and then choose the best answer Conservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.Question: What does “supply” in line 4 mean?

Xem chi tiết 424 lượt xem 4 năm trước

Read the passage below carefully, and then choose the best answer Conservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.Question: What does “arise” in line 1 mean?

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