our envoirnment Quiz
Question Number 1
which of the following are biodegradable items ?
A. wood
B. plastic
C. metal
D. glass
Question Number 2
which of the following constitute a food chain ?
A. grass wheat mango
B. grass goat human
C. human goat grass
D. wheat frog snake
E. wheat human grass
F. i don't know
Question Number 3
use of which chemical has affected the ozone layer ?
A. carbon dioxide
B. carbon monoxide
C. sulphr dioxide
D. hno3
E. cfc's
F. methane