Tag: the atmosphere

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Questions Related to the atmosphere

Multiple choice evs - i what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure
The most important layer of atmosphere is ___________.

  1. Troposphere

  2. Thermosphere

  3. Mesosphere

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The layer of atmosphere near the surface of the earth or the lower-most one is called the troposphere. The average thickness of this layer is about 14 km. Most of the weather forming phenomena occur in this layer. The significance of this layer is very crucial for the earth. It is the most important layer of the atmosphere. 

Multiple choice evs - i what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure
When precipitation comes down to the earth in the liquid form, it is called ______.

  1. cloud

  2. rain

  3. snow

  4. ice
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Precipitation of liquid water particles, either in the form of drops of more than 0.5 mm diameter or in the form of smaller widely scattered drops are called rain. Rain is precipitation of water in liquid state. The drops of rain are generally larger than of drizzle. 

Multiple choice evs - i what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure
As we go up the layer of the atmosphere, the pressure ___________.

  1. increases

  2. decreases

  3. remains same

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Air pressure always decreases with the increasing altitude. The decrease is caused by the compressional effect of the air above and its density. The decrease of temperature with increasing altitude in the atmosphere is called the vertical temperature gradient.

Multiple choice geography what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure

The equatorial and polar regions of the earth receive unequal solar heat. The convection current arising due to this is called:

  1. land breeze

  2. sea breeze

  3. trade wind

  4. tornado
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The convection currents that arise due to the unequal solar heat received by the equatorial and the polar regions are called the trade winds.
Multiple choice geography what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure

Tick the correct answer.
The major constituent of atmosphere by percent is

  1. Nitrogen

  2. Oxygen

  3. Carbon dioxide

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The atmosphere is composed mainly of nitrogen and oxygen, which make up about 99 per cent of clean, dry air. Nitrogen 78 per cent, oxygen 21 per cent and other gases like carbondioxide, argon and others comprise 1 per cent by volume. 

Multiple choice evs - i what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure

State whether these sentences are true (T) or false (F).
Carbon dioxide is an important constituents of air.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

True,

Carbon dioxide is a colorless and non-flammable gas at normal temperature and pressure. Although much less abundant than nitrogen and oxygen in Earth's atmosphere, carbon dioxide is an important constituent of our planet's air. A molecule of carbon dioxide (CO2) is made up of one carbon atom and two oxygen atoms.

Multiple choice evs - i what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure

State whether these sentences are true (T) or false (F).
The atmosphere is composed mainly of nitrogen and oxygen.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

True,

The atmosphere of Earth is composed of nitrogen (about 78%), oxygen (about 21%), argon (about 0.9%), carbon dioxide (0.04%) and other gases in trace amounts.

Multiple choice geography what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure

The lowest layer of the atmosphere called troposphere, which varies from $4$ to $5$ miles in depth at the poles to approximately $10$ miles at the equators, consists of ____________________.

  1. Water vapour, and dust, dense air

  2. Dust particles, gaseous and liquid water and dense air (nitrogen and oxygen)

  3. Clouds, dense air, water vapours and carbon dioxide

  4. Carbon dioxide and oxygen
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The troposphere contains the majority of the atmosphere's mass, including water vapor, dust, and dense gases like nitrogen and oxygen.

Multiple choice evs - i what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure

What is the percentage of oxygen in the atmosphere?

  1. 78%

  2. 21%

  3. 12%

  4. 11%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Atmosphere is the layer of gases surrounding the planet. The major gases present in atmosphere are nitrogen, oxygen, argon, carbon dioxide and other gases in minute quantity. The percentage of oxygen present in atmosphere is 21.