More Questions on Atmosphere
- Q. The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from ________
A)Stratosphere
B)Troposphere
C)Mesosphere
D)Ionosphere
Answer: Ionosphere
- Q. The core of the Earth is also known as
A)Barysphere
B)Lithosphere
C)Mesosphere
D)Centrosphere
Answer: Barysphere
- Q. Dew point is ________
A)A low pressure system in lower atmosphere
B)Amount of actual water vapour present per unit volume of air
C)Incoming solar radiation
D)A temperature at which a given sample of air becomes saturated
Answer: A temperature at which a given sample of air becomes saturated
- Q. Consider the following statements: 1. The variation in an average annual range of temperature at 15° latitude of Southern Hemisphere is much less than that at 15° latitude of Northern Hemisphere. 2. At latitudes poleward of 35° the incoming radiation exceeds the outgoing radiation in. Northern Hemisphere, whereas in Southern Hemisphere the outgoing radiation exceeds the incoming radiation. Which of the statements 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. Choose the incorrect statement ________
A)Absolute humidity is expressed in grams per cubic metre of air
B)Capacity of air to hold moisture decreases with a rise in temperature of the air
C)The air pressure decreases with an increase in temperature
D)With an ascent of every 165 metres, the temperature is reduced by 1°C
Answer: Absolute humidity is expressed in grams per cubic metre of air
- 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. The water content in the atmosphere ________
A)Decreases as temperature increases
B)Is independent of temperature
C)Increases as temperature increases
D)Either increases or decreases with temperature increase
Answer: Decreases as temperature increases
- Q. Because of which one of the following factors, clouds do not precipitate in deserts?
A)High wind velocity
B)Low pressure
C)Low humidity
D)High temperature
Answer: Low humidity
- Q. Which one of the following characteristics is not associated with the tropical cyclones?
A)As the cold front passes, the weather changes very rapidly
B)Before the cyclone arrives the air becomes very still and temperature and humidity are high
C)As the front of the vertex arrives, gusty winds develop and thick clouds appear
D)Calm conditions return when the eye of the cyclone arrives
Answer: Calm conditions return when the eye of the cyclone arrives
- Q. What is the percentage of Nitrogen in atmosphere of the Earth?
A)78.03
B)0.94
C)0.03
D)85.02
Answer: 78.03
- Q. Westerlies in southern hemisphere are stronger and persistent than in northern hemisphere. Why? 1. Southern hemisphere has less landmass as compared to northern hemisphere. 2. Coriolis force is higher in southern hemisphere as compared to northern hemisphere. Which of the statements given above is fare correct?
A)Both 1 and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: 1 only
- Q. What do you understand by the term ‘Advection’ ?
A)Heat is transferred vertically through the air
B)Heat is transferred horizontally by winds
C)Heat is transferred horizontally by both winds and ocean currents
D)Heat is transferred horizontally through ocean currents
Answer: Heat is transferred horizontally by both winds and ocean currents
- 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
- Q. When the relative humidity is 50% and air temperature is 30°C, a cooling of air mass ________
A)Decreases the relative humidity
B)Raises the absolute humidity
C)Produces no change in relative humidity
D)Increases the relative humidity
Answer: Decreases the relative humidity
- 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. Troposphere is the hottest part of the atmosphere because
A)It is heated by the Earth's surface
B)It is closest to the Sun
C)There are charged particles in it
D)Heat is generated in it
Answer: It is heated by the Earth's surface
- Q. Which of the following is the annual precipitation of an area?
A)The total amount of rain per year, irrespective of snow, hail and sleet
B)All forms of precipitation converted to the quantity of liquid water
C)The total actual amount of rain, snow, hail and sleet
D)All forms of precipitation measured after conversion to equal quantity of ice
Answer: All forms of precipitation converted to the quantity of liquid water
- Q. The Sea breeze blows during ________
A)Night from land to sea
B)Day from land to sea
C)Day from sea to land
D)Night from sea to land
Answer: Day from sea to land
- Q. A devastating Cloud Burst swept over Leh on August 2010. Which one of the following statements with regard to Cloud Burst is not correct?
A)Cloud Burst occurs only in hilly areas
B)Cloud Burst is a localized weather phenomenon representing highly concentrated rainfall over a small area in a short duration of time
C)Cloud Burst occurs due to upward movement of moisture laden air with sufficient rapidity to form cumulonimbus clouds
D)There is no satisfactory technique till now for predicting Cloud Burst
Answer: Cloud Burst occurs only in hilly areas
- 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
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