Which one of the following is/are product/s of respiration?
a) CO2
b) O2
c) water
d) both a and c
Which one of the following is by-product of photosynthesis?
a) CO2
b) O2
c) water
d) both a and c
Respiration occurs during ……..
a) day time
b) night time
c) dawn and dusk time
d) all time round the clock
Photosynthesis occurs during ……..
a) day time
b) night time
c) after sunset
d) all time round the clock
No life is possible on the Earth planet without
a) respiration
b) boiling
c) Photosynthesis
d) both a and c
EXERCISE:
