Choose and write down the correct item.
10.I can't make up/make out) what he says here.
11.Can I (join/volunteer) to conserve rare animal species?
12. Water pollution can (wipe out/drink up) fish and plant species.
13.Acid rain (gathers/poisons) trees and plants.
14.(Solar/Oxygen) power can be used to heat homes.
10) make out
11) volunteer.
12) wipe out
13) poisons
14. solar