Choose the best answer.

Forests can ______ down hot air by absorbing carbon dioxide and releasing oxygen.

Choose the best answer.

The ______ of around 40% of the world’s forests has serious impacts on over 1 billion people who live in and around forests.

Choose the best answer.

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

Choose the best answer.

Fossil fuels like coal, oil and natural gas account for 81% ______ the total energy used in the USA.

Choose the best answer.

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

Choose the best answer.

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

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.