Question

The blanket of air above earth’s surface is atmosphere.
A. True
B. False

Answer 1

Hint:We are asked whether the statement that the blanket of air above earth’s surface is atmosphere is true or false. To answer this, you will need to understand what is meant by the blanket of air above earth’s surface and know the term used for this. Check whether the term is atmosphere or not.

Complete answer:
Given to find whether the blanket of air above earth’s surface is atmosphere or not.The Earth is covered by a blanket of air which has several layers and these layers as a whole is known as atmosphere. Therefore, the blanket of air above earth’s surface is the atmosphere.

Hence, the correct answer is option A.

Additional information:
Atmosphere consists of layers surrounding the earth’s surface. These layers are troposphere, stratosphere, mesosphere, thermosphere and exosphere.
Troposphere:- The lowest layer is the troposphere and extends upto \[10\,{\text{km}}\] above sea level.
Stratosphere:- The second layer after the troposphere is the stratosphere which starts from the top of the troposphere to \[50\,{\text{km}}\] from ground level. The ozone layer is found in this region. Ozone layer absorbs ultraviolet rays or UV rays from the sun and prevents dangerous UV rays from reaching the earth.
Mesosphere:- After the stratosphere lies the layer mesosphere which starts from the top of the stratosphere to \[85\,{\text{km}}\] from ground level. It is the coldest layer of the atmosphere.
Thermosphere:- This layer lies above \[85\,{\text{km}}\] to \[400\,{\text{km}}\] from ground level. The radio waves transmitted from earth are reflected from this layer.
Exosphere:- This layer starts from the top of the thermosphere to \[10,000\,{\text{km}}\] above ground level. It is the outermost layer.

Note:Air is a non-visible form of matter which is free-flowing and in the gaseous state. We cannot see it, taste it but sometimes smell it. However, air is a known matter and like all matter, it has weight, is compressible, and takes up space. Meanwhile, the components of air and its properties are mostly studied in chemistry as well as in physics.