Home › Quizzes › Air Around Us (HBBVS)

Air Around Us (HBBVS)

Air Around Us

15 Questions Published
Play Quiz Practise this topic out loud

Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is not a property of air?

a. Air is a colourless mixture of gases.
b. Air occupies space.
c. Air is translucent.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 2 Multiple Choice (Single Answer)

Experiments conducted by which of the following scientists proved that air is a mixture of number of substances?

  1. Mayow and Lavoisier
  2. Lavoisier and Darwin
  3. Darwin and Mayow
  4. Newton and Darwin
  5. Newton and Lavoisier
Question 3 Multiple Choice (Single Answer)

Air is a mixture of a number of substances. Which of the following is not a component of air?

  1. Water vapour
  2. Dust and smoke
  3. Oxygen and nitrogen
  4. Carbon dioxide
  5. Minerals
Question 4 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. The amount of water vapour present in air is not a fixed quantity, but varies with the change in weather.
b. Everything on the surface of the Earth is surrounded by an envelope of air.
c. A few of the underwater living organisms can survive without air.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 5 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Air always contains suspended particles that may be dust, smoke or any other material.
b. The presence of dust particles in air never varies from place to place and time to time.
c. Air always contains some amount of water vapours.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 6 Multiple Choice (Single Answer)

Which of the following components of air supports combustion?

  1. Nitrogen
  2. Helium
  3. Carbon dioxide
  4. Argon
  5. Oxygen
Question 7 Multiple Choice (Single Answer)

Air is a mixture of gases. Which of the following are its two major components?

a. Oxygen
b. Carbon dioxide
c. Nitrogen
d. Helium

  1. Only a and b
  2. Only a and d
  3. Only a and c
  4. Only b and c
  5. Only b and d
Question 8 Multiple Choice (Single Answer)

Which of the following is the reason due to which the visibility increases after rains?

  1. It is because more sunlight reaches the Earth as the atmosphere clears up.
  2. It is because rain washes off dust particles and air becomes clean.
  3. It is because the moisture level of air increases.
  4. It is because the rains decrease the humidity, making the air clean.
  5. It is because the decrease in temperature after rains aids visibility.
Question 9 Multiple Choice (Single Answer)

Air is a mixture of various gases of different densities. Which among the following is the lightest gas in air, in terms of density?

  1. Nitrogen
  2. Water vapour
  3. Oxygen
  4. Carbon dioxide
  5. Argon
Question 10 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Gases like carbon dioxide, helium and water vapours constitute the major volume of air.
b. The fine hair and mucus within the nasal passage prevents the dust particles from getting into the respiratory system.
c. Air is necessary for the burning of any substance.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 11 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. The process by which oxygen reacts with the digested food to form carbon dioxide, water vapour and heat energy is called respiration.
b. Charcoal burns in air to produce carbon monoxide.
c. Tall chimneys in factories carry harmful gases to the upper layers of air and prevent pollution of air to some extent.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 12 Multiple Choice (Single Answer)

Mountaineers carry oxygen cylinders on high altitudes because

  1. the volume of water vapours sharply decreases on high altitudes
  2. the volume of carbon dioxide sharply decreases on high altitudes
  3. the volume of nitrogen sharply increases on high altitudes
  4. the volume of oxygen sharply decreases on high altitudes
  5. the volume of carbon dioxide sharply increases on high altitudes
Question 13 Multiple Choice (Single Answer)

Which of the following component of air is used for making fertiliser needed for agriculture?

  1. Oxygen
  2. Argon
  3. Carbon dioxide
  4. Helium
  5. Nitrogen
Question 14 Multiple Choice (Single Answer)

Which of the following gas is useful for plants in making their food through the process of photosynthesis?

  1. Helium
  2. Carbon dioxide
  3. Hydrogen
  4. Nitrogen
  5. Methane
Question 15 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. There is a drop in temperature and pressure of the air with the increase in height.
b. The air becomes thinner and thinner as one go high up in the atmosphere.
c. The gases in the atmosphere are stationary and help in the formation of weather.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
← Back to Quizzes