More Questions on Atmosphere
- Q. The core of the Earth is also known as
A)Barysphere
B)Lithosphere
C)Mesosphere
D)Centrosphere
Answer: Barysphere
- Q. The dense mass of small water drops on smoke particles in the lower layers of the atmosphere is ________
A)Fog
B)Smog
C)Frost
D)Dew
Answer: Smog
- Q. Which of the following are true regarding ionosphere? I. It is the uppermost layer of atmosphere II. The molecules and atoms of nitrogen and oxygen in this layer absorb a part of solar radiation and become ionized III. This layer is responsible for reflecting back the radio wave transmitted from the earth
A)II and III
B)I and II
C)I and II
D)I, II and III
Answer: II and III
- Q. In the earth’s atmosphere, the atmospheric pressure ________
A)Remains constant with height
B)Increases with height
C)Decreases with height
D)First increases and then decreases with height
Answer: Decreases with height
- Q. A fragment of solid matter which enters the upper atmosphere from outer space almost disintegrating before reaching the earth’s surface is
A)Meteor
B)Meteorite
C)Asteroid
D)Comet
Answer: Meteor
- Q. The clouds extending from one side of horizon to other as 3 dark grey sheet having uniform base are called ________
A)Cirrus clouds
B)Stratus clouds
C)Cumulus clouds
D)Nimbus clouds
Answer: Stratus clouds
- Q. The plane of contact of the troposphere and stratosphere is known as ________
A)Stratopause
B)Mesosphere
C)Ionosphere
D)Tropopause
Answer: Tropopause
- Q. Which one of the following conditions is not necessary for precipitation to occur?
A)The air must be cooled below its dew point
B)The air must be warm
C)The air must be saturated
D)The air must contain hygroscopic particles
Answer: The air must be warm
- Q. Cloud burst means ________
A)Presence of scattered flakes of cloud in the sky
B)Abnormally heavy downpour of rain, associated with a thunderstorm
C)Formation of artificial rain
D)Sowing of seeds of a crop in a cloudy weather
Answer: Abnormally heavy downpour of rain, associated with a thunderstorm
- Q. Consider the following statements regarding the distribution and pattern of isotherms 1. In the northern hemisphere, isotherms bend sharply equator-ward over the continents during winter. 2. Temperature gradients are greater in summer than in winter in the northern hemisphere. Which of the statement(s) given above is/are correct?
A)Both 1 and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: 1 only
- Q. Which one among the following forces is most powerful in determining movement of wind including its velocity ?
A)Frictional force
B)Gravitational force
C)Centrifugal force
D)Pressure gradient force
Answer: Pressure gradient force
- Q. Which of the following is/are characteristic of a depression in the southern hemisphere? I. It is a mass of air whose isobars form an oval or circular shape II. Pressure is high in the centre and decreases towards the outside III. Air moves anti-clockwise
A)I and III
B)I only
C)II only
D)All three
Answer: I only
- Q. Which of the following layers of the Earth’s atmosphere provide ideal flying conditions for Jet aircraft?
A)Stratosphere
B)Mesosphere
C)Thermosphere
D)Troposphere
Answer: Stratosphere
- Q. Which of these statements are correct regarding the atmosphere of the earth: 1. It is enveloping the earth because of gravity. 2. Its density decreases with increasing height from the surface of the earth. 3. Its characteristic composition is same throughout its height. 4. Amount of pressure it exerts on earth’s surface at sea level is called one atm sphere.
A)2, 3 and 4
B)1 and 4
C)2 and 4
D)1, 2 and 4
Answer: 1, 2 and 4
- Q. Which one of the following layers of the atmosphere is responsible for the deflection of radio waves?
A)Mesosphere
B)Troposphere
C)Stratosphere
D)Ionosphere
Answer: Ionosphere
- Q. Winds and air currents differ in the aspect that ________
A)The winds blow on lands while air currents blow over seas and oceans
B)Air currents blow much faster than winds
C)Air currents are always moisture laden while the winds are usually dry
D)Winds are horizontal movements of air while air currents are the vertical movements of air
Answer: Winds are horizontal movements of air while air currents are the vertical movements of air
- Q. Compared to other slopes in the northern hemisphere which is the warmest?
A)North facing
B)East facing
C)South facing
D)West facing
Answer: South facing
- Q. With reference to the sub-tropical high pressure belt, consider the following statements: 1. It is affected by Earth’s rotation and descent of winds from higher altitudes. 2. It is dynamically induced and characterized with anti-cyclonic conditions. Which of the statement(s) given above is/are correct?
A)2 only
B)1 only
C)Both 1 and 2
D)Neither 1 nor 2
Answer: 2 only
- Q. Which of the following are true with regard to temperature control of the atmosphere of a given place? I. The major temperature contrasts on earth’s surface are between land masses and oceans II. During night, the water surface cools more rapidly than the land surface III. Temperature generally decreases with latitude on either side of the equator IV. Temperature rises to a maximum during summer and falls to a minimum during winter
A)I and II
B)I, III and IV
C)II, III and IV
D)II and IV
Answer: I, III and IV
- Q. What is approximately the quantum of the pressure exerted by the atmosphere at sea level?
A)Five kg per sq cm
B)One kg per sq km
C)One kg per sq mtr
D)Five kg per sq mtr
Answer: One kg per sq mtr
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