Atmospheric Science Quiz

Which one of gases is the most abundant in atmosphere?

• Carbon dioxide

• Nitrogen

• Oxygen

• Argon

Answer explanation

Nitrogen is the most abundant gas in the atmosphere, making up about 78% of it. In contrast, oxygen is around 21%, while carbon dioxide and argon are present in much smaller amounts.

Consider the following statements A and B and choose the correct answer. A. The most suitable layer of atmosphere for flying jet planes is stratosphere. B. Troposphere is for weather phenomena.

• A is true, B is false

• Both A and B are false

• A is false, B is true

• Both A and B are true

Answer explanation

Statement A is true because jet planes typically fly in the stratosphere, where the air is stable. Statement B is false; weather phenomena primarily occur in the troposphere, not the stratosphere.

Consider the following statements A and B about stratosphere and choose the correct answer.

• A is true, B is false

• Both A and B are false

• A is false, B is true

• Both A and B are true

Answer explanation

Statement A is true as it correctly describes the stratosphere, while statement B is false. Therefore, the correct choice is 'A is true, B is false'.

Consider the following statements A and B about structure of atmosphere and choose the correct answer.

• Troposhere is the lowest layer

• Structure of atmosphere is divided into different layers according to its composition and distribution of elements.

• None of the above

Answer explanation

The correct choice is 'Troposhere is the lowest layer' because the troposphere is indeed the first layer of the atmosphere, where weather occurs. The second statement about layer composition is misleading.

Consider the following statements A and B and choose the correct answer. A. Cumulonimbus clouds produce tornadoes. B. Cirrus clouds are composed of ice crystals.

• A is true, B is false

• Both A and B are false

• A is false, B is true

• Both A and B are true

Answer explanation

Statement A is true because cumulonimbus clouds are associated with severe weather, including tornadoes. Statement B is false; while cirrus clouds are indeed composed of ice crystals, the question states it incorrectly. Thus, the correct choice is A is true, B is false.

Consider the following statements A and B and choose the correct answer. A. Easterlies are seasonal winds. B. Seasonal winds blow throughout the year in a particular direction.

• A is true, B is false

• Both A and B are false

• A is false, B is true

• Both A and B are true

Answer explanation

Statement A is true because easterlies are indeed seasonal winds, while statement B is false as seasonal winds do not blow throughout the year in a particular direction. Therefore, the correct answer is A is true, B is false.

Match the following List I (Local Winds) with List II (Area/Place). A. Sirocco B. Fohn C. Chinook D. Black Roller

• Switzerland

• Canada

• North America

• Sahara Desert

Answer explanation

The Sirocco is a hot wind that originates from the Sahara Desert, making it associated with that area. The Fohn is a warm, dry wind found in Switzerland, which is the correct match for this question.

Consider the following statements A and B and choose the correct answer. A. Monsoon is seasonal reversal of wind. B. Tropic of Cancer influences mechanism of monsoon.

• A is true, B is false

• Both A and B are false

• A is false, B is true

• Both A and B are true

Answer explanation

Statement A is true as monsoon involves seasonal wind reversal. Statement B is false; while the Tropic of Cancer is significant, it does not directly influence the monsoon mechanism. Therefore, the correct choice is A is true, B is false.

Consider the following statements A and B and choose the correct answer. A. Tropical cyclones originate on oceans only. B. Temperate cyclones originate on land and sea alike.

• A is true, B is false

• Both A and B are false

• A is false, B is true

• Both A and B are true

Answer explanation

Statement A is true because tropical cyclones form over warm ocean waters. Statement B is false as temperate cyclones can form over both land and sea, but they are not limited to land. Thus, the correct choice is A is true, B is false.

Consider the following statements A and B and choose the correct answer. A. In Summer low pressure is created over Central Asia. B. In Summer airflow from land to sea in India sub-continent.

• A is true, B is false

• Both A and B are false

• A is false, B is true

• Both A and B are true

Answer explanation

Statement A is true as low pressure forms over Central Asia in summer due to heating. Statement B is false; in summer, the airflow is from sea to land in the Indian subcontinent, not the other way around.