Worksheet: Solar Radiation, Heat Balance and Temperature | Geography Class 11 - Humanities/Arts PDF Download

Fill in the Blanks

Q1: The energy received by the Earth from the sun is known as _______________.

Q2: The Earth is farthest from the sun on 4th July, a position called _______________.

Q3: The angle of inclination of the sun's rays is determined by the _______________ of a place.

Q4: The red color of the rising and setting sun is a result of _______________ within the atmosphere.

Q5: The process by which the Earth's surface is heated from below and radiates heat to the atmosphere is called _______________.

Q6: The variation in the net heat budget at the Earth's surface results in some areas having a _______________ radiation balance.

Q7: The temperature generally decreases with increasing height at a rate of _______________ per 1,000 meters.

Q8: The presence of warm ocean currents can lead to _______________ temperatures in coastal areas.

Q9: Inversion of temperature can occur when the Earth's surface is _______________ than the air above during the night.

Q10: The global distribution of temperature can be observed by studying the distribution of _______________.

Assertion and Reason Based

Q1: Assertion: The Earth receives most of its energy in short wavelengths.
Reason: Short wavelengths are more effective at heating the Earth's surface.
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.

Q2: Assertion: The Earth's atmosphere is largely transparent to short-wave solar radiation.
Reason: Water vapor, ozone, and other gases in the atmosphere absorb much of the near infrared radiation.
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.

Q3: Assertion: The Earth's temperature generally decreases with increasing height.
Reason: The atmosphere is indirectly heated by terrestrial radiation from below.
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.

Q4: Assertion: The presence of warm ocean currents can lead to higher temperatures in coastal areas.
Reason: Land heats up and cools down quickly compared to the sea.
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.

Q5: Assertion: Inversion of temperature is more common during the daytime.
Reason: Inversion occurs when the Earth's surface is cooler than the air above.
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.

Very Short Answer Type Questions

Q1: What is insolation?

Q2: What is aphelion?

Q3: What is perihelion?

Q4: How does the Earth's axis inclination affect insolation at different latitudes?

Q5: Why does the atmosphere appear blue during the day?

Q6: What are isotherms?

Q7: Explain convection as a method of heating the atmosphere.

Q8: What are air masses and how do they affect temperature?

Q9: What is the normal lapse rate for temperature?

Q10: What is the moderating influence of the sea on temperature?

Short Answer Type Questions

Q1: Describe the process of terrestrial radiation.

Q2: Explain the concept of the Earth's heat budget.

Q3: How does the presence of warm and cold ocean currents influence temperature?

Q4: Discuss the distribution of temperature in the Northern and Southern Hemispheres in January.

Q5: Explain the phenomenon of inversion of temperature.

Q6: Describe the effects of the Earth's latitude on temperature.

Q7: How does the altitude of a place affect its temperature?

Q8: What are the factors that control temperature distribution?

Long Answer Type Questions

Q1: Discuss the impact of solar radiation on the Earth's heat balance and temperature.

Q2: Explain the role of atmospheric gases in the passage of solar radiation and their effect on temperature.

Q3: Describe the variations in insolation at the Earth's surface and the factors responsible for these variations.

Q4: Analyze the global distribution of temperature and the factors that influence it.