Urban area is a city area. There're many banks, cafes, restaurants and tall buildings.

I believe, we should use nonrenewable energy. First of all, because it's clean. Wind power doesn't cause any pollution. We will also never run out of wind.

There're many reasons why people move to new places. Mostly, people move to find a better job, to have good services and get new experiences.

Speed is how fast things move. Some things move fast, and some things move slowly.

Some families prefer to live in suburbs, because they are safe and quiet. There's a lot of space for hospitals, schools and zoos.

A force is what makes things move. A push is a force. A pull is a force, too.

It's easier to push my friend on a swing. My friend is lighter than the teacher, and we need to use a small force to move light objects.

We push a..., a..., and a... . We pull a..., a..., and a... .

Natural gas, oil and coal are the examples of fossil fuels.

I like that it isn't so hot on a windy day. I can go to the park with my family and fly a kite. It's a lot of fun.

Yes, it can. When you push a door with a small force, it will open slowly. When you push the door with a big force, it will open quickly.

(your answer)