Question

5. Match the columns.
Column A
Column B
a Oxygen
i. 78%
ii. helps in respiration
b. Nitrogen
Ozone layer
CP
iii. Aurora Australis
d. Particulate matter
iv. condensation nuclei
e. Southern lights
v. shield to life​

Answer 1

Answer:

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Answer 2

b help in respiration

ozone layer

Southern lights