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The questions are framed on happenings around you to enhance your competitiveness for news based concepts and facts
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Question 1 of 5
1. Question
Why are dewdrops not formed on a cloudy night?
Correct
Ans. (b) Dewdrops not formed on a cloudy night because clouds reflect back the Earth’s radiation.
To form dewdrops, the ground should become much cooler, causing the water vapour to condense.
This condensation does not take place on a cloudy night, because cloud send back terrestrial radiation to the ground. Ground never gets cold enough for the dew to be formed.
Incorrect
Ans. (b) Dewdrops not formed on a cloudy night because clouds reflect back the Earth’s radiation.
To form dewdrops, the ground should become much cooler, causing the water vapour to condense.
This condensation does not take place on a cloudy night, because cloud send back terrestrial radiation to the ground. Ground never gets cold enough for the dew to be formed.
Question 2 of 5
2. Question
Consider the following statements.
1. Moving away from the sea, force of tropical cyclone decreases.
2. Tropical cyclone gets its energy from release of latent heat on account of condensation of moisture that wind gathers after moving over the ocean which decreases as it moves away from sea.
Codes
Correct
Ans. (a) Both statements (1) and (2) are true and statement (2) is correct explanation of statement (1).
Tropical cyclone is also known as hurricanes or typhoons, derive their energy from warm ocean waters. As they move over the ocean, they gather heat and moisture, which fuels their intensity. When they move over land, they lose their energy source and their strength gradually diminishes.
Tropical cyclones are powered by the release of latent heat during the process of moisture condensation.
As moist air rises from the warm ocean surface, it cools and condenses into clouds, releasing heat into the storm system. This heat release is a crucial factor in sustaining the cyclone’s strength.
Temperate cyclones form in the mid-latitudes, typically between 30° and 60° North and South of the Equator.
They are powered by the temperature difference between the warm tropics and the cold poles.
Temperate cyclones can reach wind speeds of over 160 km/hr and produce storm surges of up to 10 ft.
Incorrect
Ans. (a) Both statements (1) and (2) are true and statement (2) is correct explanation of statement (1).
Tropical cyclone is also known as hurricanes or typhoons, derive their energy from warm ocean waters. As they move over the ocean, they gather heat and moisture, which fuels their intensity. When they move over land, they lose their energy source and their strength gradually diminishes.
Tropical cyclones are powered by the release of latent heat during the process of moisture condensation.
As moist air rises from the warm ocean surface, it cools and condenses into clouds, releasing heat into the storm system. This heat release is a crucial factor in sustaining the cyclone’s strength.
Temperate cyclones form in the mid-latitudes, typically between 30° and 60° North and South of the Equator.
They are powered by the temperature difference between the warm tropics and the cold poles.
Temperate cyclones can reach wind speeds of over 160 km/hr and produce storm surges of up to 10 ft.
Question 3 of 5
3. Question
In the South Atlantic and South-Eastern Pacific regions in tropical latitudes, cyclone does not originate. What is the reason?
Correct
Ans. (a) The most proximate reasons for the absence of cyclonic activity in the South Atlantic and South-Eastern Pacific are the sea surface temperatures that tend to be cooler than required temperature for tropical cyclone formation, Ideal conditions for formation of tropical storms are; large sea surface with temperature higher than 27°C, presence of the Coriolis force, small variations in the vertical wind speed.
Incorrect
Ans. (a) The most proximate reasons for the absence of cyclonic activity in the South Atlantic and South-Eastern Pacific are the sea surface temperatures that tend to be cooler than required temperature for tropical cyclone formation, Ideal conditions for formation of tropical storms are; large sea surface with temperature higher than 27°C, presence of the Coriolis force, small variations in the vertical wind speed.
Question 4 of 5
4. Question
The seasonal reversal of winds is the typical characteristic of
Correct
Ans. (c) The seasonal reversal of winds is the characteristic of monsoon climate.
Monsoon elimate refers to the seasonal reversal in the wind direction during a year. They are marked by dry winters and wet summers. The climate of India is described as the monsoon type.
Incorrect
Ans. (c) The seasonal reversal of winds is the characteristic of monsoon climate.
Monsoon elimate refers to the seasonal reversal in the wind direction during a year. They are marked by dry winters and wet summers. The climate of India is described as the monsoon type.
Question 5 of 5
5. Question
Consider the following statements.
1. In Equatorial regions, the year is divided into four main seasons.
2. In the Mediterranean region, summer receives more rain.
3. In China type climate, rainfall occurs throughout the year.
4. Tropical highlands exhibit vertical zonation of different climates.
Select the correct answer by using the codes given below.
Correct
Ans. (c) Statements (3) and (4) are correct as in China type of climate, rainfall occurs throughout the year. Temperate monsoon or China type climate is observed in most parts of China. The climate is also observed in Southern parts of Japan. Tropical highlands exhibit vertical zonation of different climates. Vertical zonation is a consistent pattern at a regional scale within the same biogeographical zone.
Statements (1) and (2) are incorrect because in Equatorial regions, the year is mainly divided in two seasons i.e., summer and winter. In Mediterranean region, winter receive more rainfall than summer.
The Mediterranean lands receive most of their precipitation in winter, when the Westerlies shift Equator wards.
Incorrect
Ans. (c) Statements (3) and (4) are correct as in China type of climate, rainfall occurs throughout the year. Temperate monsoon or China type climate is observed in most parts of China. The climate is also observed in Southern parts of Japan. Tropical highlands exhibit vertical zonation of different climates. Vertical zonation is a consistent pattern at a regional scale within the same biogeographical zone.
Statements (1) and (2) are incorrect because in Equatorial regions, the year is mainly divided in two seasons i.e., summer and winter. In Mediterranean region, winter receive more rainfall than summer.
The Mediterranean lands receive most of their precipitation in winter, when the Westerlies shift Equator wards.
