Layers of Atmosphere Characteristics I. Troposphere Absorbs ultraviolet radiation II. Stratosphere Changes in weather and climate III. Mesosphere Reflects radio waves back to the Earth
How many of the pairs given above are correctly matched?
None
To determine how many pairs are correctly matched, we need to understand the characteristics of each atmospheric layer:
- Troposphere:
The troposphere is the lowest layer of Earth's atmosphere and is where all weather phenomena occur. It does not absorb significant ultraviolet radiation; instead, this role is mostly carried out by the stratosphere, particularly by the ozone layer within it. Hence, the statement that the troposphere absorbs ultraviolet radiation is incorrect.
- Stratosphere:
The stratosphere is located above the troposphere and contains the ozone layer, which does absorb ultraviolet radiation. The statement given attributes "Changes in weather and climate" to the stratosphere, which is incorrect because these phenomena are primarily associated with the troposphere. Therefore, this pair is also incorrectly matched.
- Mesosphere:
The mesosphere is the third layer of the atmosphere above the stratosphere. It is known for burning up meteors due to its thickness. It does not reflect radio waves; this function is largely associated with the ionosphere (a part of the thermosphere), where free electrons provide the ability to reflect radio waves back to Earth. Thus, this pair is incorrectly matched as well.
Based on the analysis above, none of the pairs are correctly matched. Therefore, the correct answer is None.
Important Questions from Atmosphere
In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of Air Quality Index?
1. Carbon dioxide
2. Carbon monoxide
3. Nitrogen dioxide
4. Sulfur dioxide
5. Methane
Select the correct answer using the code given below.
A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why?
1) The presence of ozone causes the reflection of radio waves to Earth.
2) Radio waves have a very long wavelength.
Which of the statements given above is/are correct?
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?
The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs
Which one of the following is associated with the issue of control and phasing out of the use of ozone-depleting substances?
