Ozone Layer
Ozone Layer: Overview
This topic covers concepts, such as, Ozone Layer & Ozone Depletion etc.
Important Questions on Ozone Layer
Which disease is caused due to hole in the ozone layer and why?

Consider the following statements regarding O3 layer.
I. O3 layer is found in troposphere.
II. O3 layer absorbs IR-radiation.
III. O3 layer absorbs UV-radiation.
Identify the correct statement.

Write the name of two constituent of troposphere.

What are the two forms of oxygen found in the atmosphere?

If all the oxygen present in the environment gets converted to ozone, what is most likely to happen?

State any difference between oxygen and ozone?

Although ozone is poisonous, yet it performs a very important role for us. Identify the role of gaseous ozone.


Depletion of ozone molecules in the stratosphere is due to

Ozone layer is found in which layer of the atmosphere?

The use of chemicals like chlorofluorocarbons has greatly depleted the atmospheric _____ layer, which could endanger the environment.

Choose the right answer and fill in the blank.
The Ozone layer is a region of Earth's _____ (troposphere/stratosphere) that absorbs most of the Sun's ultraviolet radiation.

Choose the right word and fill in the blank.
_____ causes depletion of ozone layer. (CFCs/Water vapour)

Harmful radiations coming from the sun is known as - (Ultraviolet rays / gamma rays)

What is ozone? How is it helpful for our environment?

Fill in the blanks with suitable words.
webbed | retina | filtrate | New Moon | soluble | cerebrum | wings | stratosphere | vertebrae | scales |
The ozone layer is a part of the _____.

Fill in the blanks by choosing the suitable words from the box. You can use a word twice.
carbon dioxide | stratosphere | oxygen | pressure | water | air |
The ozone layer is a part of the _____.

Which one of the following plays major role for ozone depletion?

Which one absorbs harmful radiations from the Sun?

To which height is the ozonosphere present over the equator.
