Definitions [6]
Define the following
Mesosphere
The layer of the atmosphere which extends to a height of 80 km above the stratosphere is called Mesosphere.
Define the following
Exosphere
The topmost layer of the atmosphere is called the Exosphere.
Answer the following questions
What is atmosphere?
Atmosphere is a thin blanket of air that surrounds the earth. It protects us from the harmful rays of the sun. It consists of several gases in which nitrogen and oxygen occupy the major portion.
Define the following
CFC’s
These are chloro-fluoro carbons and are used as propellants in aerosol cans, refrigerants in refrigerators, air conditioning and as solvent cleaners in the microelectronic industry.
Define the following
Thermosphere
The ionosphere, which extends from 80 km to 480 km is known as the Thermosphere.
The envelope of air around the Earth is called the atmosphere. It is composed of nitrogen, oxygen, water vapour, and carbon dioxide, with other gases present in small quantities. The atmosphere is like a protective blanket that keeps our planet safe and helps support life.
