Question

1. which gas protects us from harmful sun rays.
(a) Carbon di oxide
(b) Nitrogen
(c) Ozone
(d) Helium
2. The most important layer of the atmosphere is
(a) Troposphere
(b) Stratosphere
(c) Mesosphere
(d) Hydrosphere​

Answer 1

Answer:

1. Ozone

2. Troposphere

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Answer 2

Answer:

1 . Ozone protects us from harmful sun rays.

2 . Troposphere is the most important layer of the atmosphere.

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