Choose the best answer.

The average world’s temperature has risen ______ about 0.8 degrees Celsius over the past 100 years.

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Deforestation happens when trees are cut down to make room for farming, construction or ______.

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Dams and reservoirs are required ______ to store water during periods of surplus water availability.

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Energy plays a key role for ______ development of a country.

Choose the word OPPOSITE in meaning to the underlined part.

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Ann and Mai are discussing the benefits of part-time jobs for students.

Ann: “Well, I think the first benefit is that students can earn money to pay their tuition fees. What do you think, Mai?”

Mai: “_______, Ann. Now there are many kinds of part-time jobs that help students become more independent and improve some necessary skills for their future job.”

Choose the best answer.

In the United States, fossil fuels were the main source to ______ about 60% of total electricity generation in 2020.

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Climate scientists are discussing the ______ of the Amazon rainforest deforestation.