Câu hỏi:

Will nuclear energy used by many countries in the world?

They will destroy the forest to build a hydro power station.

When will the non-renewable energy sources be use up?

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

In India, the demand for ___________ has always been more than the supply.

Two layers of glass in the window will be stopped the heat going out.

The government has warned that Britain will face power ___________ in the coming winters.