Tag: elements of weather and climate : temperature

Questions Related to elements of weather and climate : temperature

Gases which increase the temperature of the atmosphere such as carbon dioxide, methane, chlorofluorocarbon, etc are known as ___ gases.

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

  1. Green house

  2. Blue house

  3. White house

  4. Red house

Show answer
Correct Option: A
Explanation:

Greenhouse gases,

Some greenhouse gases occur naturally and enter the atmosphere as a result of both natural processes (such as decomposition of organic matter) and human activity (such as burning fossil fuels and agriculture). Greenhouse gases that occur both naturally and from human activities include water vapor, carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and ozone (O3). Other greenhouse gases have essentially no natural sources, but are side products of industrial processes or manufactured for human purposes such as cleaning agents, refrigerants, and electrical insulators. These include the fluorinated gases: chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HCFCs), bromofluorocarbons (halons), perfluorocarbons, PFCs, nitrogen trifluoride, NF3, and sulfur hexafluoride, SF6.

These gases contribute to atmospheric warming when they absorb infrared radiation emitted by the solar-warmed Earth and transfer their extra energy to the surrounding atmospheric gases.

The most important layer of the atmosphere is ________.

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

  1. Troposphere

  2. Thermosphere

  3. Mesosphere

  4. Stratosphere

Show answer
Correct Option: A
Explanation:

Troposphere is considered as the most important layer of atmosphere. It is the lower most layer of the Atmosphere. Its average height is 13 km. The thickness varies from 8 km to 18 km, with maximum at equator and minimum poles. All the atmospheric phenomena such as rains, wind, clouds, etc. take place in this layer. Troposphere contains roughly 80% of the mass of Earth's atmosphere and it composed of composed of nitrogen (78%) and life giving gas oxygen (21%) with small concentrations of other trace gases. Hence, Troposphere is very important for the existence of life on earth as it causes the cloud formation, raining and maintaining the heat balance of the earth.

The lower layer of the atmosphere is known as __________.

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

  1. Mesosphere

  2. Ionosphere

  3. Troposphere

  4. Stratosphere

Show answer
Correct Option: C
Explanation:

Troposphere,

The troposphere is the lowest layer of the Earth's atmosphere. The air is very well mixed and the temperature decreases with altitude. Air in the troposphere is heated from the ground up. The surface of the Earth absorbs energy and heats up faster than the air does.

As we go up the layers of the atmosphere, the pressure ________.

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

  1. Increases

  2. Decreases

  3. Remains the same

  4. All of these

Show answer
Correct Option: B
Explanation:
The weight of the atmosphere acts as a force upon the underlying surface of the Earth. The amount of force exerted over an area of surface is called atmospheric pressure or air pressure. In the atmosphere, the air pressure at any point is caused by the weight per area of the air above that point. As we go up the layers of the atmosphere, fewer air molecules are above us. So, there will be less weight of air above us. Hence, atmospheric pressure always decreases as we move upward in the atmosphere.

Through the process of photosynthesis plants absorb ___ from the atmosphere and release ___ into it.

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

  1. Carbon dioxide, oxygen

  2. Exhaustible

  3. Non-renewable

  4. Natural

Show answer
Correct Option: A
Explanation:
Carbon dioxide, oxygen.
Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water. This glucose can be converted into pyruvate which releases adenosine triphosphate (ATP) by cellular respiration. Oxygen is also formed.

Photosynthesis may be summarised by the word equation:

carbon dioxide + water arrow with sunlight and chlorophyll glucose + oxygen
The conversion of usable sunlight energy into chemical energy is associated with the action of the green pigment chlorophyll.

The layer present between stratosphere and thermosphere is _______________.

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

  1. Ionosphere

  2. Mesosphere

  3. Troposphere

  4. None of these

Show answer
Correct Option: B
Explanation:

The layer present between stratosphere and thermosphere is mesosphere. Height of mesosphere layer is 80-85 kms. It is the layer present between stratosphere and thermosphere. In the mesosphere, temperature decreases as the altitude increases. The upper boundary of the mesosphere is the mesopause, which is the coldest naturally occurring place on Earth.

The thermosphere begins at a height of _____________.

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

  1. 80 Km

  2. 95 Km

  3. 105 Km

  4. 120 Km

Show answer
Correct Option: A
Explanation:

The thermosphere begins at about 80 km (50 mi) above sea level. At these high altitudes, the residual atmospheric gases sort into strata according to molecular mass (see turbosphere).

The height of mesosphere extends from ____________.

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

  1. 70 to 80 km

  2. 110 to 130 km

  3. 80 to 85 km

  4. 95 to 105 km

Show answer
Correct Option: C
Explanation:

Height of mesosphere layer is 80-85 kms. It is the layer present between stratosphere and thermosphere. In the mesosphere, temperature decreases as the altitude increases. The upper boundary of the mesosphere is the mesopause, which is the coldest naturally occurring place on Earth.

Which of the following statements is true:

A.The troposphere is thinner at the poles 

B.The troposphere is thicker at the poles 

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

  1. Only A

  2. Only B

  3. Both A and B

  4. None of these

Show answer
Correct Option: A
Explanation:

Among the given options only A is true because troposphere is thinner at the poles. The height of the troposphere varies from place to place and from season to season. The height of the troposphere at the pole is about 8 Km while at the equator it is about 16 Km.

The atmospheric layer that supports life is _________.

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

  1. Stratosphere

  2. Mesosphere

  3. Troposphere

  4. Ionosphere

Show answer
Correct Option: C
Explanation:

The atmospheric layer that supports life is called troposphere. It is the lowest layer of earth’s atmosphere. The troposphere starts at Earth's surface and goes up to a height of 7 Km to 16 km. Almost all weather phenomenon occur in this layer.