Class 11 Geography Important Chapter 16 Solar Radiation Heat Balance and Temperature

Class 11 Geography Important Chapter 16 Solar Radiation Heat Balance and Temperature Solutions English Medium As Per AHSEC New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters ASSEB Class 11 Geography Important Solutions and select need one. AHSEC Class 11 Elective Geography Additional Notes English Medium Download PDF. HS 1st Year Finance Important Solutions in English.

Class 11 Geography Important Chapter 16 Solar Radiation Heat Balance and Temperature

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. ASSEB Class 11 Elective Geography Additional Question Answer are part of All Subject Solutions. Here we have given HS 1st Year Elective Geography Important Notes in English for All Chapters, You can practice these here.

Solar Radiation Heat Balance and Temperature

Chapter: 16

FOURTH UNIT: ATMOSPHERE, WEATHER AND CLIMATE

IMPORTANT QUESTION AND ANSWER

Answer The Following Questions:

1. What is the main difference between Weather and Climate?

Ans: Weather is the short-term condition of the atmosphere, which may change daily, hourly, or even minute to minute, whereas Climate is the long-term average condition of weather at a place over many years.

2. What are the main causes of the variation in Solar Insolation?

Ans: The five main causes are –

(i) Earth’s rotation.

(ii) Latitude.

(iii) Length of day.

(iv) Transparency of the atmosphere.

(v) Distribution of land and water.

3. What are the three methods of Heat Transfer?

Ans: The three methods of heat transfer are Conduction, Convection, and Radiation.

4. What is Humidity?

Ans: The amount of water vapour present in the atmosphere is called Humidity.

5. What is the main difference between Land and Water heating?

Ans: Land heats up and cools down quickly, while water heats and cools slowly; therefore, coastal regions experience less temperature variation.

6. What is meant by Heat Balance?

Ans: When the amount of heat absorbed by the Earth equals the amount of heat radiated back into space, it is called Heat Balance.

7. What is Conduction?

Ans: The transfer of heat energy from the Earth’s surface to the air directly in contact with it is called Conduction.

8. What is an Isotherm?

Ans: A line connecting places having the same temperature on a map is called an Isotherm.

9. Write any one factor of Solar Insolation.

Ans: Latitude: The Sun’s rays are vertical at the equator, so Solar Insolation is greater there than at the poles.

10. What are the main elements of Weather and Climate?

Ans: The main elements of weather and climate are temperature, humidity, and pressure.

Long Question & Answer:

1. Define Weather and Climate. Differentiate between them.

Ans: Weather refers to the temporary condition of the atmosphere over a short period, including temperature, humidity, rainfall, wind, and cloudiness.It changes frequently and is observed daily or hourly.

Climate, on the other hand, refers to the average weather condition of a region over a long period (usually 30 years or more). Weather is temporary and changeable, while Climate is stable and long-term. For example, Assam has a warm and humid climate with heavy rainfall, but its daily weather may vary. Thus, Weather changes daily, but Climate defines the general pattern of atmospheric conditions over decades.

2. What is Solar Insolation? Mention its main controlling factors.

Ans: Solar Insolation refers to the short-wave solar energy received by the Earth’s surface and atmosphere from the Sun.

It is the primary source of energy for all atmospheric processes. The amount of insolation varies from place to place and time to time.

The main controlling factors are:

(a) Latitude: Solar rays are more vertical at the equator.

(b) Altitude: Higher altitudes receive less heat.

(c) Earth’s rotation and revolution: Change the angle and duration of sunlight.

(d) Atmospheric transparency: Clouds, dust, and vapour reduce solar energy.

(e) Land and water distribution: Land absorbs more heat than water.