Question

ation,
e for
2.
Read and Answer
Choose and write the correct answer (MCOS):
The major constituent of air is:
a. oxygen
b. carbon dioxide
c. nitrogen
d.water vapour
2.
Which one of the following gases is used by plants to make their food from air?
a. carbon dioxide) b.oxygen
c. nitrogen d.argon
3. Which one of the following gas is released by animals during respiration?
a. oxygen
b. carbon dioxide ) c. nitrogen d.none of these
Which one of the following parts that help in breathing?
a. chlorophyll
b.stomata
c.stem I d.root
5. Which of the following uses gills to breathe?
a. humans
b. plants
c. fish
d. amoeba
4.
100​

Answer 1

Answer:

idk where ppl ask such questions

pls make it clearer