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Class 7 Geography Chapter 4 Air MCQ Questions
Class 7 Social Science Geography Chapter 4 focuses on understanding our Air. This chapter from the NCERT textbook for Class 7 teaches students about the different aspects of the Air, including natural and man-made components. It explains how various elements of the Air interact and the importance of maintaining ecological balance.
To help students understand the concepts better, here are some MCQ Questions for Class 7 Geography Chapter 4 with answers. These MCQ questions for Class 7 Geography Chapter 4 are designed to test students’ knowledge and reinforce key ideas from the chapter.
Understanding this chapter is crucial because it emphasizes the interdependence between living organisms and their surroundings. It highlights the importance of preserving our natural habitats and the role of different aerial domains like the lithosphere, hydrosphere, atmosphere, and biosphere in maintaining ecological balance.
Practicing Class 7 Geography Chapter 4 MCQs with answers helps students test their knowledge and improve their understanding of key concepts. These CBSE Class 7 Social Science Geography Air MCQ questions provide a fun and effective way to reinforce learning and prepare for exams. By engaging with these MCQ questions for Class 7 Geography Chapter 4, students can enhance their grasp of the subject matter and build a strong foundation for future studies.
MCQ for Class 7 Geography Chapter 4 Air MCQ Questions with Answers
Question 1: What surrounds the earth and provides the air we breathe?
- A) Hydrosphere
- B) Lithosphere
- C) Atmosphere
- D) Biosphere
Answer: C) Atmosphere
Question 2: Which gas makes up the bulk of the atmosphere?
- A) Oxygen
- B) Carbon dioxide
- C) Nitrogen
- D) Hydrogen
Answer: C) Nitrogen
Question 3: What gas is primarily responsible for the greenhouse effect?
- A) Nitrogen
- B) Oxygen
- C) Carbon dioxide
- D) Ozone
Answer: C) Carbon dioxide
Question 4: How do plants obtain nitrogen for their survival?
- A) Directly from the air
- B) Through the roots with the help of bacteria
- C) Through photosynthesis
- D) From animals
Answer: B) Through the roots with the help of bacteria
Question 5: What is the second most plentiful gas in the atmosphere?
- A) Carbon dioxide
- B) Nitrogen
- C) Oxygen
- D) Argon
Answer: C) Oxygen
Question 6: What disrupts the balance of carbon dioxide in the atmosphere?
- A) Cutting trees
- B) Breathing of humans and animals
- C) Photosynthesis
- D) Burning of fuels such as coal and oil
Answer: D) Burning of fuels such as coal and oil
Question 7: What layer of the atmosphere is closest to the earth’s surface?
- A) Stratosphere
- B) Troposphere
- C) Mesosphere
- D) Thermosphere
Answer: B) Troposphere
Question 8: Which layer of the atmosphere contains the ozone layer?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Thermosphere
Answer: B) Stratosphere
Question 9: In which layer of the atmosphere do meteorites burn up?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Thermosphere
Answer: C) Mesosphere
Question 10: Which layer of the atmosphere helps in radio transmission?
- A) Troposphere
- B) Stratosphere
- C) Mesosphere
- D) Thermosphere
Answer: D) Thermosphere
Question 11: Which is the outermost layer of the atmosphere?
- A) Troposphere
- B) Stratosphere
- C) Exosphere
- D) Thermosphere
Answer: C) Exosphere
Question 12: What is the term for the average weather condition of a place over a long period?
- A) Weather
- B) Climate
- C) Atmosphere
- D) Temperature
Answer: B) Climate
Question 13: What is the degree of hotness and coldness of the air called?
- A) Pressure
- B) Humidity
- C) Temperature
- D) Climate
Answer: C) Temperature
Question 14: What influences the distribution of temperature on earth?
- A) Air pressure
- B) Wind
- C) Insolation
- D) Humidity
Answer: C) Insolation
Question 15: What happens to air pressure as we go up the layers of the atmosphere?
- A) Increases
- B) Decreases
- C) Remains the same
- D) Fluctuates
Answer: B) Decreases
Question 16: What is the movement of air from high pressure areas to low pressure areas called?
- A) Wind
- B) Cyclone
- C) Humidity
- D) Breeze
Answer: A) Wind
Question 17: What is the term for the amount of water vapor in the air?
- A) Temperature
- B) Humidity
- C) Pressure
- D) Wind
Answer: B) Humidity
Question 18: What type of rainfall occurs when air is forced to rise over a barrier like a mountain?
- A) Convectional rainfall
- B) Cyclonic rainfall
- C) Orographic rainfall
- D) Monsoonal rainfall
Answer: C) Orographic rainfall
Question 19: What type of wind is the “loo” in northern India?
- A) Permanent wind
- B) Seasonal wind
- C) Local wind
- D) Trade wind
Answer: C) Local wind
Question 20: What is the standard unit of measuring temperature?
- A) Fahrenheit
- B) Kelvin
- C) Celsius
- D) Rankine
Answer: C) Celsius
Question 21: Which gas in the atmosphere occupies only 0.03% by volume?
- A) Nitrogen
- B) Oxygen
- C) Carbon dioxide
- D) Argon
Answer: C) Carbon dioxide
Question 22: What happens to air when it is heated?
- A) Contracts and sinks
- B) Expands and rises
- C) Becomes denser
- D) Remains the same
Answer: B) Expands and rises
Question 23: Which instrument measures atmospheric pressure?
- A) Thermometer
- B) Barometer
- C) Anemometer
- D) Rain gauge
Answer: B) Barometer
Question 24: What do we call the moisture in the air at any given time?
- A) Dew point
- B) Precipitation
- C) Humidity
- D) Condensation
Answer: C) Humidity
Question 25: What is the primary cause of global warming?
- A) Increase in nitrogen levels
- B) Increase in carbon dioxide levels
- C) Increase in oxygen levels
- D) Increase in argon levels
Answer: B) Increase in carbon dioxide levels
Question 26: What happens to the temperature as insolation decreases from the equator towards the poles?
- A) Increases
- B) Decreases
- C) Remains constant
- D) Fluctuates
Answer: B) Decreases
Question 27: What causes tidal waves during cyclones?
- A) Wind velocity
- B) Rain
- C) Tidal surge
- D) Air pressure
Answer: C) Tidal surge
Question 28: What is the direction of wind movement?
- A) From low pressure to high pressure
- B) From high pressure to low pressure
- C) Vertically upwards
- D) Vertically downwards
Answer: B) From high pressure to low pressure
Question 29: What is the most important layer of the atmosphere for weather phenomena?
- A) Stratosphere
- B) Troposphere
- C) Mesosphere
- D) Thermosphere
Answer: B) Troposphere
Question 30: What layer helps in radio transmission by reflecting radio waves back to the earth?
- A) Troposphere
- B) Stratosphere
- C) Ionosphere
- D) Exosphere
Answer: C) Ionosphere
