Weather and Climate 8th Social Answers

 Answers

I. Choose the correct answer:
1. Earth’s atmosphere contains about percentage of nitrogen and oxygen.
a) 78% and 21%
b) 22% and 1%
c) 21% and 0.97%
d) 10% and 20%
Answer:
a) 78% and 21%

2. ………………. is generally defined as the average conditions of the weather of a place or a region.
a) earth
b) atmosphere
c) climate
d) sun
Answer
c) climate

3. The earth receives energy from
a) current
b) electro magnetic radiation
c) waves
d) heat
Answer:
d) heat

4. Which one the following represents places with equal amount of rainfall
a) isotherm
b) isohel
c) isobar
d) isohytes
Answer:
d) isohytes

5. …………. is used to measure the humidity.
a) anemometer
b) barometer
c) hygrometer d) thermometer
Answer:
c) hygrometer

II. Fill in the blank
1. ……………….. refers to the condition of atmosphere for a short period of time.
Answer:
Weather

2. The scientific study of weather is called ………….
Answer:
Meteroiogy

3. The highest temperature ever recorded on the earth is ……………..
Answer:
56.7°C in in USA

4. …………. is a ratio between the actual amount of water vapour and the maximum amount of water vapour the air can hold.
Answer:
Humidity

5. …………. and ………….. are measured by anemometer and wind vane respectively.
Answer:
Wind direction and wind speed

6. ………… are imaginary lines which connect the same temperatures of different places.
Answer:
Isotherms

III. Match the following

1. Climate	a) Locating and Tracking Storms
2. Isonif	b) Cyclone
3. Hygrometer	c) Equal Snowfall
4. Radar	d) Long Term Changes
5. Low Pressure	e) Humidity

Answer:

1. Climate	d) Long Term Changes
2. Isonif	c) Equal Snowfall
3. Hygrometer	e) Humidity
4. Radar	a) Locating and Tracking Storms
5. Low Pressure	b) Cyclone

IV. State whether the following statements are True or False:
1. The atmosphere is a layer of gases surrounding the planet.
Answer:
True

2. The scientific study of weather is called Climatology.
Answer:
False

3. Isohel refers equal sunshine.
Answer:
True

4. Humidity is calculated by Aneroid Barometer.
Answer:
False

Additional Important Questions and Answers

I. Choose the Correct answer:
1. The word Klimo is derived from the language.
a) Greek
b) Latin
c) Arab
d) English
Answer:
a) Greek

2. Horizontal movement of air is called
a) Storm
b) Cyclone
c) Mist
d) Wind
Answer:
d) Wind

3. The average wind speed is low in
a) France
b) Canada
c) Argentina
d) Brazil
Answer:
d) Brazil

4. The temperature decreases per 1000 meters height is
a) 5°C
b) 6.5°C
c) 7°C
d) 8.5°C
Answer:
b) 6.5°C

5. …………….. is the difference between the maximum and minimum temperatures of a day.
a) Diurnal range
b) Heat conduction
c) Heat radiation
d) Heat elevation
Answer:
a) Diurnal range

6. Which Zone is called a Tropical Zone?
a) Torrid zone
b) Temperate zone
c) Frigid zone
d) Polar zone
Answer:
a) Torrid zone

7. Isobar means
a) Equal Sunshine
b) Equal atmospheric pressure
c) Equal temperature
d) Equal rainfall
Answer:
b) Equal atmospheric pressure

8. The name of an Equal amount of rainfall is
a) Isotherm
b) Isohel
c) Isohyet
d) Isollobar
Answer:
c) Isohyet

9. The name of Equal pressure tendency is
a) Isotherm
b) Isohel
c) Isohyet
d) Isollobar
Answer:
d) Isollobar

10. Major element of weather and climate is
a) Temperature
b) Sound
c) Light
d) Latitude
Answer:
a) Temperature

II. Fill in the blanks:
1. Heat energy from ………………. is received by the earth through three mechanisms.
Answer:
Solar radiation

2. ……………. and soil are the major factors which affect the distribution of temperature.
Answer:
Natural vegetation

3. The distribution of temperature is shown by means of ………………..
Answer:
Isotherms

4. Temperature zone lies between tropic of …………… circle in the Northern Hemisphere and the ………………. circle in the Southern Hemisphere.
Answer:
Arctic, Antarctic

5. Frigid zone is known as …………………
Answer:
polar region

6. ………………… is a major component of the water cycle.
Answer:
Rain

7. Generally rainfall is high in the …………….. region.
Answer:
Equatorial

8. The average of ……………. and ……………. temperatures within 24 hours is called mean daily temperature.
Answer:
maximum, minimum

9. …………………. is a diagram used to depict the direction and periods of prevailing winds on a map.
Answer:
Wind rose

10. Weather is the day to day conditions of the ………………………..
Answer:
atmosphere

11. The amount of carbon dioxide in the atmosphere is ………………..
Answer:
0.03%

12. The amount of argon in the atmosphere is …………….
Answer:
0.97%

13. The word Klimo means ……………….
Answer:
Inclination

14. Climate is the average atmospheric conditions usually for ………………..
Answer:
35 years

15. The Scientific Study of Climate is called …………….
Answer:
Climatology

III. Match the following:

1. Aniroid	a) Temperature
2. Beaufort	b) diagram
3. Wind rose	c) Wind speed
4. Fahrenheit	d) humidity
5. Hydrometer	e) air pressure

Answer:

1. Aniroid	e) air pressure
2. Beaufort	c) Wind speed
3. Wind rose	b) diagram
4. Fahrenheit	a) Temperature
5. Hydrometer	d) humidity

IV. State whether the following statements are True or False:
1. The highest temperature ever recorded on the earth is 56.7°C.
Answer:
True

2. The degree of heat present in the sun is termed as temperature.
Answer:
False

3. Rainfall is measured by Raingauge.
Answer:
True

4. Temperature decreases to 8°C per 1000 meters in height.
Answer:
False

5. Al-Balakhi prepared the first climatic Atlas of the world.
Answer:
True