Questions with the keyword 'plants'

• Why do we need plants? by natrualme to Jemma, John, Lisa, Sam Comments: (No comments so far )
• Why do leaves die even though there is lots of rain? by kamilo12 to Faye, Martin, Mus, Pete Comments: (No comments so far )
• why do trees and plants give us so much oxygen? by redxi07 to clairemarieroberts, Faye, Martin, Mus, Pete Comments: (No comments so far )