Question

30. Consider the following statements:
1. Nearly 99 percent of the total mass of
the atmosphere lies within 30km of the
Earth's surface.
2. The proportion of the ozone in the
atmosphere increases to a maximum at
about 60 km from the Earth's
surface.
Which of the statements given above is/
are correct?
Full Marks : 1
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 and 2​

Answer 1

Answer:

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Answer 2

Answer:

B one is the answer ok it is right answer or not tell me