More Questions on Atmosphere
- Q. When can one record the lowest temperature of air?
A)At 3 a.m.
B)Just before sunrise
C)At midnight
D)No fixed time
Answer: Just before sunrise
- Q. Which of the following sequences of atmospheric layers is correct from below?
A)Troposphere, Tropopause, Stratosphere, Ionosphere
B)Stratosphere, Ionosphere, Tropopause, Troposphere
C)Ionosphere, Troposphere, Stratosphere, Tropopause
D)Tropopause, Troposphere, Ionosphere, Stratosphere
Answer: Troposphere, Tropopause, Stratosphere, Ionosphere
- Q. Cyclone is a system of wind blowing ________
A)In a straight line from high to low pressure region
B)Spirally outwards from a high pressure region
C)Spirally towards low pressure region
D)From Ball of Bengal towards Bangladesh annually
Answer: Spirally towards low pressure region
- Q. Which of the following statements characterize the anticyclones? 1. Anticyclones are low pressure systems. 2. They are characterized by divergent wind circulation. 3. They are indicative of dry weather conditions. Select the correct answer using the codes given below
A)1, 2 and 3
B)2 and 3
C)1 and 3
D)1 only
Answer: 2 and 3
- Q. Logically, what does a continually rising air pressure indicate?
A)Fine and settled weather
B)Advent of unsettled and cloudy weather
C)Advent of a cyclone
D)Fine and unsettled weather
Answer: Advent of unsettled and cloudy weather
- Q. Which is the warmest layer of the atmosphere?
A)Stratosphere
B)Thermosphere
C)Troposphere
D)Mesosphere
Answer: Thermosphere
- Q. Precipitation takes place when ________
A)Temperature of moisture in air sharply decreases
B)The sky is overcast with clouds
C)Temperature of moisture in air suddenly increases
D)Winds begin to blow in a circular motion
Answer: The sky is overcast with clouds
- Q. The portion of the atmosphere which extends from the earth’s surface upto 6-8 miles and experiences decrease in temperature at constant rate is ________
A)Troposphere
B)Stratosphere
C)Tropopause
D)Ionosphere
Answer: Troposphere
- Q. The cold and dense air blowing down the mountain slope during the night is known as ________
A)Katabatic wind
B)Anabatic wind
C)Khamsin
D)Harmattan
Answer: Katabatic wind
- 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
- Q. Which one of the following constituents of the atmosphere causes greatest changes in climate and weather?
A)Ozone
B)Nitrogen
C)Oxygen
D)Water Vapour
Answer: Water Vapour
- Q. Which of the following depletion results in the increase in the UV radiation on the Earth?
A)Ozone
B)Carbon monoxide
C)Carbon dioxide
D)Oxygen
Answer: Ozone
- 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. Freely moving bodies are ________
A)Deflected upwards at the equator
B)Deflected to their right in the northern hemisphere
C)Deflected to the right in the southern hemisphere
D)Unaffected by the earth's movements
Answer: Deflected to their right in the northern hemisphere
- Q. An important gas in the atmosphere that absorbs sun’s ultraviolet rays is
A)Ozone
B)Oxygen
C)Nitrogen
D)Hydrogen
Answer: Ozone
- Q. The Trade winds are caused by ________
A)Inflowing movement of air along the earth's surface towards the equator
B)Rotation of the earth
C)Revolution of the earth
D)None of these
Answer: Inflowing movement of air along the earth's surface towards the equator
- 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. The velocity of winds is related to ________
A)Pressure gradient in the direction of their flow
B)The amount of moisture they carry
C)The nearness to the sea
D)The direction in which they blow
Answer: Pressure gradient in the direction of their flow
- Q. Which of the following are the ideal conditions for the phenomenon of temperature inversion to occur? I. Long nights II. Cloudy sky III. Calm and stable air IV. Dry air
A)II, III and IV
B)I and II
C)I, II and III
D)I, III and IV
Answer: I, III and IV
- Q. Frontal rain is caused by ________
A)Cyclonic activity
B)Convection currents
C)Winds from sea
D)Condensation of water evaporated from mountains
Answer: Cyclonic activity
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