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1) When supercooled water drops and ice particles coexist, the ice crystals grow at the expense of the water drops because
a) Saturation vapour pressure over water drops is less than over the ice crystals
b) Saturation vapour pressure over the ice crystals is less than over water drops
c) The ice crystals convert into water drops
Explanation: Ice crystals grow at the expense of supercooled water drops because the saturation vapor pressure is lower over ice than over water.
2) The clouds whose tops extend well above the freezing level are called
a) Warm Clouds
b) Cold Clouds
c) Moderate Clouds
Explanation: Clouds with tops extending above the freezing level contain ice particles, classifying them as cold clouds.
3) The clouds whose tops do not extend to the freezing level are called
a) Warm Clouds
b) Cold Clouds
c) Moderate Clouds
Explanation: Clouds that do not reach the freezing level lack ice particles, making them warm clouds.
4) Coalescence Theory explains the occurrence of rainfall from
a) Warm Clouds
b) Cold Clouds
c) Both types of Clouds
Explanation: Coalescence Theory describes rainfall formation in warm clouds through the merging of droplets.
5) Ice Crystal Theory explains the occurrence of rainfall from
a) Warm Clouds
b) Cold Clouds
c) Both types of Clouds
Explanation: Ice Crystal Theory explains rainfall in cold clouds where ice crystals grow and eventually fall as precipitation.
6) Giant Nucleus Theory explains occurrence of rainfall over
a) Maritime areas
b) Inland areas
c) Hilly areas
Explanation: Giant Nucleus Theory describes rainfall formation over maritime areas, where large salt particles act as nuclei.
7) Very heavy precipitation as showers over a short period is called
a) Flash floods
b) Cloud Burst
c) Orographic Rain
Explanation: A cloud burst is an intense, short-duration rainfall event, often causing localized flooding.
8) Rain shadow area is on the ……….. of the mountain range
a) Top
b) Windward side
c) Leeward side
Explanation: Rain shadow areas occur on the leeward side of mountains, where descending air results in reduced precipitation.
9) Sleet is a mixture of
a) Hail and Snow
b) Rain and Snow
c) Frozen Rain
Explanation: Sleet forms as a mixture of rain and snow, often occurring when rain passes through a layer of colder air.
10) Rainfall in the tropics is more in
a) Winters
b) Summers
c) Post monsoon
Explanation: Tropical rainfall peaks in summer due to higher temperatures and intense convective activity.
11) Rainfall in the tropics is more in the
a) Morning
b) Afternoon
c) Night
Explanation: Afternoon rainfall is common in the tropics due to intense daytime heating and convection.
12) Rainfall in the temperate latitudes is more in
a) Winters
b) Summers
c) Spring
Explanation: Temperate regions receive more rainfall in winter due to frontal systems.
13) Over Jand K and western Himalayas Rainfall is more in
a) Winters
b) Summers
c) Post monsoon
Explanation: Winter rainfall in Jand K and western Himalayas results from western disturbances.
14) Rainfall over coastal areas is more in the
a) Evening
b) Afternoon
c) Night and early morning
Explanation: Coastal areas often experience rainfall at night and early morning due to sea breeze and temperature differences.
15) Areas to the ……….. of western Ghats of India are rain shadow areas
a) W
b) S
c) E
Explanation: Eastern areas of the Western Ghats experience a rain shadow effect, resulting in lower rainfall.
16) A sudden rise in the level of rivers or streams causing floods is called
a) Cloud Burst
b) Catchments flooding
c) Flash Floods
Explanation: Flash floods result from sudden heavy rainfall, causing rapid rises in river or stream levels.
17) Artificial rain making is also termed as
a) Simulation
b) Cloud seeding
c) Nucleation
Explanation: Artificial rain making is commonly known as cloud seeding, where chemicals are introduced into clouds to encourage precipitation.
18) Fog can be dispersed for a short period by artificial stimulation
a) True
b) False
Explanation: Artificial stimulation, such as using chemicals or heating, can disperse fog temporarily.
19) Showery precipitation occurs from
a) NS
b) AC
c) CB
Explanation: Showery precipitation, characterized by sudden, intense rainfall, typically occurs from cumulonimbus (CB) clouds.
20) A day is called Rainy day when rainfall in 24 hr is ....mm or more
a) 1.5
b) 2
c) 2.5
Explanation: A rainy day is defined as a day when the total rainfall in 24 hours is 2.5 mm or more.

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