Atmosphere - General Knowledge Question and Answer

Atmosphere - Question and Answer

The Earth's atmosphere is divided into  


4 layers
6 layers
5 layers
7 layers

Answer:

The Earth's atmosphere is divided into 5 layers.


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Major constituent of the Earth’s atmosphere is  


Oxygen
Argon
Carbon Dioxide
Nitrogen

Answer:

Major constituent of the Earth’s atmosphere is Nitrogen.


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What is the lowest layer of Earth's atmosphere?  


Troposphere
Mesosphere
Thermosphere
Stratosphere

Answer:

Troposphere is the lowest layer of Earth's atmosphere


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Where is located Ozone layer?  


Troposphere
Stratosphere
Thermosphere
Mesosphere

Answer:

The ozone layer is contained within the stratosphere. In this layer ozone concentrations are about 2 to 8 parts per million, which is much higher than in the lower atmosphere but still very small compared to the main components of the atmosphere. It is mainly located in the lower portion of the stratosphere from about 15–35 km (9.3–21.7 mi; 49,000–115,000 ft), though the thickness varies seasonally and geographically. About 90% of the ozone in our atmosphere is contained in the stratosphere.


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The Average Air Pressure is about  


14.70 pounds per square inch
1,013.25 * 103 dynes per square centimeter
101.325 kilopascals
All

Answer:

Standard sea-level pressure, by definition, equals 760 mm (29.92 inches) of mercury, 14.70 pounds per square inch, 1,013.25 * 10 3 dynes per square centimetre, 1,013.25 millibars, one standard atmosphere, or 101.325 kilopascals.


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A visible mass of condensed vapor floating above the general level of the ground is known as  


Fog
Smog
All
Cloud

Answer:

All


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What does Ozone layer?  


absorbs the UV-A
absorbs the UV-C
absorbs the UV-B
All

Answer:

Levels of ozone at various altitudes and blocking of different bands of ultraviolet radiation. Essentially all UVC (100–280 nm) is blocked by dioxygen (from 100–200 nm) or else by ozone (200–280 nm) in the atmosphere. The shorter portion of the UV-C band and the more energetic UV above this band causes the formation of the ozone layer, when single oxygen atoms produced by UV photolysis of dioxygen (below 240 nm) react with more dioxygen. The ozone layer also blocks most, but not quite all, of the sunburn-producing UV-B (280–315 nm) band, which lies in the wavelengths longer than UV-C. The band of UV closest to visible light, UV-A (315–400 nm), is hardly affected by ozone, and most of it reaches the ground. UV-A does not primarily cause skin reddening, but there is evidence that it causes long-term skin damage.


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Mesopause is the transitional zone that separates Mesosphere and Thermosphere.  


Exosphere and Thermosphere
Mesosphere and Stratosphere
Stratosphere and Thermosphere
Mesosphere and Thermosphere

Answer:

Mesopause is the transitional zone that separates Mesosphere and Thermosphere.


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The Satellite is normally placed in the  


Troposphere
Stratosphere
Thermosphere
Exosphere

Answer:

The Satellite (orbiting the Earth) is normally placed in the Exosphere .


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The humidity of the air depends upon  


Location
Temperature
Weather
All

Answer:

The humidity of the air depends upon Location, Temperature and Weather.


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