Choose the best answer.

The effects of global warming range ______ melting glaciers to rising sea levels.

Choose the best answer.

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

Choose the best answer.

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

Choose the best answer.

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

Choose the best answer.

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.

Choose the best answer.

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

Choose the best answer.

The use of biofuels helps to achieve energy ______ as it helps reduce the dependence on foreign oil for some countries.