We should ….. the use of fossil fuels and others non-renewable source of energy.

Wind power is one of the earliest ___________ sources of energy used by humankind.

Nobody can predict exactly when supplies of fossil fuels will be ___________. However, we all know they quickly reduce in quantity.

sự thiếu hụt in English means

“Why is it called a__________ source?” - “Because it can be replaced easily and quickly.”

The wind, the sun, and the wave are some types of __________ sources of energy.

We should put__________ on our roof for the heating and hot water.

Biogas is__________ and cheap for cooking and heating.

Fossil fuels are very common in our society but they__________ the environment.

__________ energy is produced by collecting sunlight and converting it into electricity.

There are many available __________ power sources in Vietnam including sun, wind, water, etc.

exhausted means

solar in English means

nuclear in English means

phong phú, dồi dào

sẵn có

These types of energy won’t waste ………………. resources.

These types of energy won’t cause .................

Solar …………. will be placed on the roofs of houses