What are the advantages of wind power? Select all that apply.

1. always available

2. non-polluting energy source

3. free after equipment is built

4. useful in remote areas

5. can use anywhere

1.not always available until wind is there

2.yes its not pollutants

3.not always

4.yes remote areas which don't have other resources and can spread electricity can be distributed to around 20 households

5.not anywhere since this source need strong wind source