What is global warming? what can people do to reduce it?

Hey there!

Here are your answers:

The proper answers to these questions are: "
1. Global warming is the heating of Earths surface because of the increase of Carbon dioxide in the air.
2. Ways to reduce Global warming is using less carbon dioxide in the air. You could use battery power machinery, for example use battery powered vehicles. It doesn't pump that much carbon dioxide in the air therefore its a less chance for Global warming".   

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit