Structure of the Atmosphere: MCQ Test (25 questions)

Question 1 of 25

The troposphere is the lower layer of the atmosphere whose height at the equator is-

Aup to 10 miles
Bup to 9 miles
Cup to 6 miles
Dup to 4 miles

Question 2 of 25

The stratosphere is considered ideal for the flight of jet planes because -

AOzone present in this layer reduces fuel consumption.
BThe temperature in this layer remains even, which is a favorable condition for fuel efficiency.
CThis layer is beyond the range of anti-aircraft weapons.
DThere are no clouds or other weather phenomena in this layer.

Question 3 of 25

Which of the following atmospheric layers absorbs the ultraviolet rays of the Sun?

ATroposphere
Bstratosphere
CIonosphere
Dozone layer

Question 4 of 25

What is the correct descending order of the following gases found in the Earth's atmosphere? 1. Nitrogen 2. Carbon dioxide 3. Oxygen 4. Argon 5. Neon

A1,3,2,4,5
B1,3,2,5,4
C1,3,4,2,5
D1,2,3,5,4

Question 5 of 25

In which layer of the ionosphere do short radio waves get reflected and reach the surface?

AD layer
BE layer
CF layer
DS layer

Question 6 of 25

What is the atmospheric layer farthest from the Earth's surface called?

Amesosphere
Bstratosphere
Cexosphere
DIonosphere

Question 7 of 25

Which is the lowest layer in the vertical structure of the atmosphere?

Astratosphere
Bmesosphere
Ctroposphere
Dthermosphere

Question 8 of 25

Consider the following constituent gases of the atmosphere - 1. Argon 2. Neon 3. Helium 4. Carbon dioxide Which of the following is the correct ascending order of the above gases in terms of percentage by volume?

A3-2-4-1
B1-4-2-3
C4-2-3-1
D2-4-1-3

Question 9 of 25

Which of the following statements is not correct regarding the mesosphere?

AMeteorites burn up upon entering this layer from space.
BIn this layer, the temperature increases rapidly with increasing altitude.
CThis is the third layer of the atmosphere.
DIt is directly above the stratosphere

Question 10 of 25

Choose the correct answer that shows the order of layers of the atmosphere?

AIonosphere, Voltosphere, Mesosphere, Stratosphere, Transformation
BTransformation, Stratosphere, Mesosphere, Ionosphere, Volumetric,
CVolosphere, Transformation, Ionosphere, Mesosphere, Stratosphere,
DMesosphere, Ionosphere, Stratosphere, Transformation, Ionosphere,

Question 11 of 25

Which layer is found above the troposphere in the atmosphere?

Astratosphere
Bmesosphere
Cthermosphere
Dexosphere

Question 12 of 25

Which atmospheric layer is known as the "ceiling of seasonal change"?

Astratosphere
BTroposphere
CIonosphere
Dmesosphere

Question 13 of 25

Normal air pressure is found in-

Aon the mountains
Bin the desert
Con the seabed
D5 km above the surface

Question 14 of 25

The ozone layer is at a height above the earth-

A50 km.
B300 km.
C2000 km.
D20 km.

Question 15 of 25

Which of the following layers is the upper limit of our atmosphere, extending from the top of the thermosphere to 1,000 km (6,200 mi)?

Aexosphere
Btropopause
Cmesosphere
Dionosphere

Question 16 of 25

All the hot deserts of the world are located in which of the following belts?

Aequatorial low pressure belt
Bsubtropical high pressure belt
Csubpolar low pressure belt
Dpolar high pressure belt

Question 17 of 25

Which of the following gases is responsible for the greenhouse effect?

Achlorine
BCO2
Coxygen
Dhydrogen

Question 18 of 25

What is the main basis for dividing the atmosphere into layers like troposphere, stratosphere etc.?

Atemperature
BAir pressure
COrganization
Ddestiny

Question 19 of 25

What percentage of the Earth's atmosphere is found up to a height of 29 km?

A0.29
B0.57
C0.76
D0.97

Question 20 of 25

What is the transition region between the troposphere and the stratosphere called?

Aisothermal boundary
Btropopause
Cmiddle range
Douter limit

Question 21 of 25

Where is the Earth's atmosphere most dense?

ATroposphere
BStratosphere
CMadhyamandal
DIonosphere

Question 22 of 25

The calm belt is found on both sides of which line?

AEquator
BTropic of Cancer
CCapricorn
Darctic line

Question 23 of 25

In which layer of the atmosphere does thunder occur?

AIonosphere
Bozone layer
CTroposphere
DStratosphere

Question 24 of 25

The atmosphere is mainly heated by?

Afrom direct sunlight
Bby radiation from the Earth
Cfrom the heat inside the Earth
Dfrom the friction of the Earth's motion

Question 25 of 25

Where is the highest concentration of ozone in the atmosphere?

AIonosphere
Bmesosphere
Cstratosphere
DTroposphere