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The formation of ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?

Presence of prominent tropospheric turbulenc
Presence of prominent polar front and stratospheric cloud
Absence of polar front and stratospheric cloud
Increased temperature at polar region due to global warming
Additional Questions

The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation?
1. There are no clouds or water vapour in the lower stratosphere.
2. There are no vertical winds in the lower stratosphere.
Which of the statements given above is/are correct in this context?

Answer

What is a zoom lens?

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What is the difference between a CFL and an LED lamp?
1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material.
2. The average life span of a CFL is much longer than that of an LED lamp
3. A CFL is less energy-efficient as compared to an LED lamp.
Which of the statements given above is/are correct?

Answer

Which one of following reflects back more sunlight as compared to other three?

Answer

Seawater (i.e. saltwater) freezes at:

Answer

The Indian population receives the largest dose of ionizing radiation from:

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What range of frequencies are usually referred to as audio frequencies for humans?

Answer

Titan is the largest natural satellite of planet

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Water boils at a lower temperature on the hills because

Answer

Which is the longest?

Answer
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