To help save the environment, try ____ energy and water consumption, changing your eating and transportation habits to conserve natural resources, and adapting your home and yard to be more environmentally friendly.

Modern day agriculture practices ____ chemical products like pesticides and fertilizers to deal with local pests.

Waste from industrial and agricultural ____ pollutes the water that is used by humans, animals and plants.

The number of inhabitants on the planet ____ arriving at unsustainable levels as it confronts deficiency of assets like water, fuel and food.

Land pollution can have huge environmental impact ____ the form of air pollution and soil pollution which in turn can have adverse effect on human health.

Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences.

Burning yard waste releases mold spores, soot, and other contaminants that can aggravate allergies and cause ____ problems.

At present, timberlands cover 30% of the area, but wooded areas are being lost ____ a regular basis because people are looking for homes, food, and materials.