Explain the term UV.

One Line Answer

UV means an ultraviolet range of radiations. These are the radiations which are emitted by the sun and they enter our atmosphere.

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Chapter 5: Heat and Energy - Transmission of Heat [Page 227]

Chapter 5 Heat and Energy
Transmission of Heat | Q 28.2 | Page 227

Which one of the following is a Greenhouse gas?

State the cause of increase of green house effect.

The green house gas is :

State three causes that have led to an increase in greenhouse gases in the atmosphere.

State the consequence of the greenhouse effect.

The diagram represents the green house effect.

State why the effect is called ‘global warming’.

The diagram represents the greenhouse effect.

Name a process which (a) releases (b) absorbs – greenhouse gas – CO₂.

How will you minimize heat loss due to the following:

Radiation

Name the chemicals which are used in refrigerators and air conditioners and damage ozone layer when released in air.

Explain the greenhouse effect with reference to the gases responsible for it and their sources.