Câu hỏi:

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

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

Will nuclear energy used by many countries in the world?

Laos and Cambodia have big plans for building up to 11 ___________ on the lower Mekong.

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

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

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