Fuels, such as gas, coal and oil, that were formed underground from plant and animal remains millions of years ago (noun)

Not strong or clear, slight (adj)

Food that has had some sort of chemical or industrial treatment in order to cook it, preserve it, or improve its taste of appearance is... (adj)

A device that changes energy from the sun into electricity

A type of service available on the internet that allows you to exchange written messages with someone else who is using the service at the same time

The way the world's weather is changing

Positioned or relating to the coast (adj)

Electricity produced by using the energy from the sun

A substance in a form like air that is neither solid nor liquid

New information / new version of an application

Weather that is not very cold or not as hot as usual (adj)

A record of the address of an internet document or webpage on your computer so that you can find it again easily

To put electricity into an electrical device such as a battery (verb)