Questions

Que-Ans: [3 Marks Each]

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7 questions · timed · auto-graded

Question 13 Marks
Vertical distribution of temperature 

Answer
The temperature gradually decreases from the equator to both poles.
At the equator the sun's rays always fall in a vertical direction.
So the temperature there is always high.
The rays from the equator to the poles have to pass through more layers of the atmosphere.
As a result their heat decreases.
The Sun's rays are perpendicular to the Tropic of Cancer in June and the Tropic of Capricorn in December.
So these ions have the highest temperatures in months.
The polar regions i.e. the Arctic and Antarctica have more diagonal sun rays.
So the temperature stays the lowest there.
Thus, a change in temperature is felt according to latitude.
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Question 23 Marks
Density of atmosphere.


Answer
Atmospheric density and altitude also affect sunlight.
Sunburn is more absorbed in dense environments. While less absorbed in thin environments.
At the equator, the atmosphere becomes thinner and thicker towards the poles.
So the amount of sunlight on the Earth's surface decreases as it moves from the equator to the poles.
The diagonal rays of the sun pass through a longer atmospheric area and reach the earth. And lose more heat along the way.
It therefore gives less sunlight to the respective region.
The direct rays of the sun pass through the shorter length of the atmosphere and lose less heat along the way thus giving less sunlight to the respective region.
The direct rays of the sun pass through the layer at a short length to the atmosphere. And lose less heat along the way.
Therefore gives more sunshine to the respective region.
This is why the amount of sunscreen moving from the equator to the poles gradually decreases.
Thus, the density and altitude of the atmosphere also affect sunlight.
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Question 33 Marks
Inversion of temperature
Answer
In some cases the process is called inversion if the temperature of the atmosphere rises instead of falling.
This is due to the effect of factors such as long winter nights, stable air, clear skies, windless nights, icy regions, etc.
And the layers that rise in the atmosphere during that period are relatively warm.
Hence the situation is called inversion temperature.
Such an inversion of temperature is felt in the northern and south polar glacial regions, high mountain regions as well as valley regions.
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Question 43 Marks
Solar radiation
Answer
The earth receives both heat energy and light from the sun's rays. These rays are called solar radiations.
The sun's heat energy and light come to the earth through its radiation. That is why solar radiation is also called "solar energy".
When the sun's rays reach the earth, it strikes the earth's surface before it passes through the atmosphere.
The sun's radiation first warms the earth.
The atmosphere and water are then heated by processes such as heat transfer, heat transfer and heat transfer.
Because the angular length of radiation from the sun is not the same, not all places on earth receive the same amount of sunlight.
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Question 53 Marks
Explain the difference between Vertical Rays and Slant Rays.
Answer
Sr. No Vertical Rays   Slant Rays
$1.$ The direct rays of the sun come from the atmospheric area. And lose less heat along the way. $1.$ The sun's slant rays pass through a longer atmospheric area and reach the earth, losing more heat along the way.
$2.$ Spread over a small area of the earth's surface. $2.$ Spread over a greater area of the earth's surface.
$3.$ The sun's rays fall directly on the Tropic of Capricorn. $3.$ The sun's rays are slant in the area between the ionospheres and the poles.
$4.$ Direct rays give more sunlight. $4.$ The slant rays give more sunlight.
$5.$ In the afternoon the sun's rays fall directly. $5.$ The morning and evening sun rays are slant.
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Question 63 Marks
Asymmetry occurs in the distribution of temperature away from the coast. Give a reason.
Answer
  • Distance from the sea also varies in the horizontal distribution of temperature.
  • Temperatures remain high in land areas away from the coast.
  • There are also daily intervals of temperature and annual intervals.
  • While temperatures remain congested near coastal areas.
  • Water takes longer than land to heat or cool. This means that summer temperatures are lower in coastal areas than in continental areas.
  • When moving away from the coast, there is heterogeneity in the distribution of temperature.
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Question 73 Marks
Long and short days – write short notes.
Answer
  • Directly affects the length of the day or the amount of sunlight.
  • The length of the day and the seasons vary with latitude.
  • The longer the day, the more sunlight there is.
  • Days are longer in summer than in winter.
  • So the sun gets more sunshine on earth in the summer season.
  • In addition, the angular height of the sun as well as the length of the day, which is favorable on the region where the most sunshine.
  • In the Northern Hemisphere, for example, on June 21, the sun's rays are most direct around 30 degrees north latitude.
  • So that day has the longest day and the shortest night on these latitudes.
  • So that region gets the most sunshine.
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