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Subjects

Geography

The heat budget of the earth

पृथ्वी का ऊष्मा बजट

Class 11 Geography explores the heat budget of the Earth as the balance between incoming solar radiation and outgoing terrestrial radiation. Students learn how the atmosphere, land, oceans, clouds, and ice reflect, absorb, store, and redistribute heat, and why the Earth’s average temperature remains broadly stable. The topic connects this balance with the greenhouse effect, latitudinal differences in heating, and the movement of heat through the atmosphere and oceans.

TOPIC PRACTICE

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Up to 25 questions from this page. Select your focus, then start.

25 questions

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Hard · Level 5
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  1. Hundred units
  2. Sixty five units
  3. Thirty five units
  4. Thirty units
Hard · Level 5
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  1. Earth reflects part of solar energy absorbs part and then balances absorbed energy through longwave emission and heat trans
  2. Earth always stores all energy
  3. Only the Sun decides Earths temperature and no process exists
  4. Clouds and atmosphere are not included in heat budget
Hard · Level 5
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  1. Clouds can return a large part of incoming energy to space
  2. Clouds pull all energy from the surface
  3. Clouds create Earth's longwave energy
  4. Clouds destroy the solar constant
Hard · Level 5
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  1. Surface reflection is less than cloud reflection
  2. Surface sends all energy to space
  3. Surface sends solar energy to the Sun as longwave
  4. Surface albedo is always zero
Hard · Level 5
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  1. Reduced arrival of solar radiation at the surface
  2. Arrival of terrestrial radiation from the Sun
  3. Oceans becoming the energy source
  4. Earth's temperature always remaining zero
Hard · Level 5
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  1. Sixty five units
  2. Thirty five units
  3. Fourteen units
  4. Seventeen units
Hard · Level 5
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  1. Total sixty five units absorbed energy
  2. Total thirty five units reflected energy
  3. Total seventeen units direct escape
  4. Total hundred units terrestrial radiation
Hard · Level 5
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  1. Through terrestrial longwave radiation and atmospheric processes
  2. Through river deposition and earthquakes
  3. Through the Moon's revolution
  4. Through increase in solar constant
Hard · Level 5
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  1. Atmospheric window
  2. Solar constant
  3. Rain shadow
  4. Ocean salinity
Hard · Level 5
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  1. Atmosphere is also an emitter in the heat budget
  2. Atmosphere is only a passive medium
  3. Atmosphere is the original source of solar energy
  4. Atmosphere has no separate energy from the surface
Hard · Level 5
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  1. Energy conservation and heat balance
  2. Population balance
  3. River erosion balance
  4. Ocean salinity balance
Hard · Level 5
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  1. Energy surplus and warming tendency will develop
  2. Energy deficit and cooling will occur immediately
  3. Solar radiation will end
  4. Albedo will always increase
Hard · Level 5
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  1. Outgoing energy is greater than incoming energy
  2. Incoming energy is greater than outgoing energy
  3. Solar energy is highly absorbed
  4. Clouds return longwave energy downward
Hard · Level 5
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  1. The heat trapping cloud layer is weak
  2. The Sun shines more at night
  3. The surface emits no radiation
  4. The atmosphere completely disappears
Hard · Level 5
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  1. Day temperature may be lower and night temperature higher reducing range
  2. Temperature will rise infinitely day and night
  3. Night temperature will always be zero
  4. Solar energy will completely increase during day
Hard · Level 5
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  1. Less energy is reflected and more energy is absorbed
  2. Longwave radiation stops forming
  3. Solar constant becomes zero
  4. Atmosphere stops receiving energy
Hard · Level 5
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  1. Positive feedback because albedo decreases and absorption increases
  2. Negative feedback because solar energy ends
  3. Complete balance because no radiation remains
  4. Zero effect because snow has no albedo
Hard · Level 5
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  1. Longwave radiation emitted by Earth
  2. Rotational energy of Earth
  3. Energy of ocean tides
  4. Energy of seismic waves
Hard · Level 5
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  1. Water vapour absorbs longwave radiation
  2. Water vapour makes the Sun larger
  3. Water vapour stops Earth's orbit
  4. Water vapour reduces the solar constant
Hard · Level 5
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  1. Less direct escape of longwave energy
  2. Complete end of solar energy
  3. Surface reflection becoming zero
  4. Decrease in ocean depth
Hard · Level 5
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  1. Due to lower heat capacity and less mixing
  2. Due to one hundred percent albedo
  3. Due to absence of solar energy
  4. Due to absence of longwave radiation
Hard · Level 5
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  1. Ocean gains and releases heat slowly
  2. Ocean produces solar energy
  3. Ocean emits no longwave radiation
  4. Ocean always keeps albedo zero
Hard · Level 5
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  1. Low water vapour causes strong heating by day and strong radiative cooling at night
  2. Thick clouds trap heat day and night
  3. Sea has high heat capacity
  4. Snow cover increases albedo
Hard · Level 5
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  1. They cause more absorption and heat storage
  2. They reflect all energy
  3. They form clouds and stop rainfall
  4. They end solar radiation
Hard · Level 5
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  1. Albedo moisture evapotranspiration and heat storage change
  2. Distance from the Sun changes
  3. Earth's axis breaks
  4. The atmosphere disappears

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