Environment & Ecology

2 questions available

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All Ecosystem 56 Food Chain 1 Biodiversity 1 Pollution 6 Global Warming 3 Climate Change Ozone Layer 2 Natural Resources 2
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Q1.The zone of atmosphere in which ozone layer is present is?

Easy
A Mesosphere
B Ionosphere
C Stratosphere
D Troposphere
Ozone Layer PMS 2021

Correct Answer: C

The ozone layer resides in the Stratosphere, roughly 15-35 km above Earth's surface, where it absorbs most of the Sun's harmful UV radiation.

Q2.At approximately what altitude is most of the ozone layer found?

Easy
A 10–20 km
B 20–30 km
C 30–40 km
D None of these
Ozone Layer PPSC 2021

Correct Answer: B

Most atmospheric ozone is concentrated in the stratosphere roughly 20–30 km above Earth.