Question

1
1) The gas which is released by green plants as a by product for photosynthesis
a) Carbon dioxide
b) Oxygen c) Chlorine
d) Neon
2) The gas which is used by green plants as a raw material for photosynthesis
a) Carbon dioxide
b) Oxygen c) Chlorine
d) Neon
3 ) Which of the following is not a green house gas

a) Neon
b) Carbon dioxide
c) Water vapour
d) Methane
​

Answer 1

Answer:

1. 1-b) oxygen
2. a)CO2
3. a) neon

Answer 2

Answer:

1) b oxygen.

2) a carbon dioxide.

3) d methane.