More Questions on Atmosphere
- 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. The dry wind ‘Santa Ana’ blows in ________
A)Switzerland
B)Siberia
C)Argentina
D)California
Answer: California
- Q. The atmospheric layer farthest from the Earth’s surface is known as
A)Ionosphere
B)Stratosphere
C)Exosphere
D)Mesosphere
Answer: Exosphere
- Q. Which one among the following local winds is not characteristically hot and dry?
A)Khamsin
B)Sirocco
C)Mistral
D)Chinook
Answer: Mistral
- Q. Very strong and cold icy winds that blow in the Polar regions are called ________
A)Blizzards
B)Typhoons
C)Tornadoes
D)Polar winds
Answer: Blizzards
- 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. A sudden fall in the barometric reading indicates ________
A)Fine weather
B)Rain
C)Storm
D)Extreme cold
Answer: Storm
- Q. Evening sun is not a shot as the mid-day sun. What is the reason?
A)Ozone in atmosphere absorbs more light in the evening
B)In the evening, radiations travel slowly
C)In the evening, the temperature of the sun decreases
D)In the evening, radiations travel larger distance through atmosphere
Answer: In the evening, radiations travel larger distance through atmosphere
- 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. 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. At which height, the gaseous surrounding has covered the Earth’s atmosphere?
A)200km
B)100km
C)150km
D)300km
Answer: 300km
- Q. Which one among the following statements relating to a cyclone is not correct?
A)Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere
B)It is a wind circulation system with a low pressure at the centre
C)It brings about sudden change In weather condition in an area
D)It is known as hurricane in West Indies
Answer: Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere
- 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. 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 is a cold wind?
A)Chinook
B)Buran
C)Foehn
D)Sirocco
Answer: Buran
- Q. Which of the following is especially true of anticyclones in the southern hemisphere?
A)They often form over continents
B)The air moves in a circular manner
C)Pressure increases from the outside to the centre
D)The air moves in an anti-clockwise direction
Answer: The air moves in an anti-clockwise direction
- Q. What is the major role of a greenhouse gas that contributes to temperature rise of the Earth’s surface?
A)Lets outgoing infrared radiation pass through but stops incoming sunlight
B)Transparent to both incoming sunlight and outgoing infrared radiation
C)Stops both incoming sunlight and outgoing infrared radiation
D)Lets incoming sunlight pass through but stops outgoing infrared radiation
Answer: Lets incoming sunlight pass through but stops outgoing infrared radiation
- Q. Which of the following characterises the Foehn? I. It is warm II. It is humid III. It is common in the valleys of the northern Alps IV. It blows in winter
A)I, III and IV
B)I, II and IV
C)I, II and III
D)I, II, III and IV
Answer: I, III and IV
- 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. 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
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