how plants ????

India
October 13, 2008 6:27am CST
plants , how do they help in the protection of the environment...
2 responses
jags420
@jags420 (189)
• India
14 Oct 08
plants have cholorophyll. the leaves contain chlorophyll. these help in taking up carbon dioxide and returning oxygen to the environment. this is the major role required for the survival of species. like this, plants help...
grammasnook
@grammasnook (1871)
• United States
13 Oct 08
Plants produce oxygen which is give for all living things to survive.