Air
Extra Questions
Fill in the blanks:
- Meteorites burn up in the _________.
- The average weather condition of a place over a longer period of time is called _____
- ________ winds change their direction in different seasons.
- High pressure is associated with _________.
- Horizontally, the distribution of air pressure is influenced by the ______ at a given place.
- Low pressure is associated with ______
- Air moves from area of ___pressure to area of ____ pressure.
Answer: (1) Mesosphere, (2) Climate, (3) Seasonal, (4) Clear and sunny sky, (5) Temperature, (6) Cloudy sky and wet weather, (7) High, low
Match the following description regarding atmosphere and the term
Column I | Column II |
---|---|
(i) Most important layer | (a) Stratosphere |
(ii) Third layer | (b) Troposphere |
(iii) Cloudless | (c) Mesosphere |
(iv) Ionosphere is a part of | (d) Exosphere |
(v) Layer having very thin air | (e) Thermosphere |
Answer:i - b, ii - c, iii – a, iv – e, v - d
Match the following terms with their examples
Column I | Column II |
---|---|
(i) Local wind | (a) Monsoons |
(ii) Permanent wind | (b) Loo |
(iii) Seasonal wind | (c) Trade winds |
Answer: i – b, ii – c, iii – a
Match the following terms with what they measure/indicate
Column I | Column II |
---|---|
(i) Thermometer | (a) Atmospheric pressure |
(ii) Barometer | (b) Temperature |
(iii) Wind vane | (c) Rainfall |
(iv) Rain gauge | (d) Wind direction |
Answer: i – b, ii – a, iii – d, iv - c
Multiple Choice Questions:
Question 1: ______ is a light gas
- Helium
- Hydrogen
- Both a and b
- None of the above
Answer: (a) Helium
Question 2: Air pressure _____ as the height increases
- Increases
- Falls rapidly
- Falls marginally
- Remains constant
Answer: (b) Falls rapidly
Question 3: The movement of air from high pressure area to low pressure area is called ______
- Atmospheric pressure
- Wind
- Climate of a place
- Season
Answer: (b) Wind
Question 4: _____ is not a form of precipitation.
- Snow
- Sleet
- Loo
- Hail
Answer: (c) Loo
Question 5: _____ is/are types of rainfall.
- Cyclonic
- Orographic
- Convectional
- All of the above
Answer: (d) All of the above
Question 6: Masses of water droplets are called _____
- Rain
- Flood
- Snow
- Cloud
Answer:(d) Cloud
Question 7: _____ is true about winds
- They can blow gently or very strongly
- They blow away fine dust and smoke
- They can uproot trees
- All of the above
Answer: (d) All of the above
Question 8: ____ is a local wind
- Loo
- Sea breeze
- Land breeze
- All of the above
Answer: (d) All of the above
Question 9: Wind blowing from west is called a/an ____
- Easterly
- Western
- Westerly
- Cyclone
Answer: (c) Westerly