solid fuels造句怎么写

Indoor smoke from household use of solid fuels.

Cooking and heating with such solid fuels on open fires or stoves without chimneys leads to indoor air pollution.

Women and girls in rural villages lose time and energy walking around collecting dirty solid fuels, ranging from crop waste to cow dung (better used as fertiliser).

Some solid fuels, such as wood and coal, are chiefly composed of carbon, hydrogen and oxygen .

These solid fuels may be the least costly fuels available.

Around 3 billion people still cook and heat their homes using solid fuels in open fires and leaky stoves.