Tag: geography

Questions Related to geography

Consider the following statements-
(a) Alluvial soil are formed by sediments deposited by rivers.
(b) Black soil is found in the dry and Semi-dry areas of Rajasthan and Gujarat.
(c) Red soil cannnot retain much moisture. 
(d) Laterite soil is found over lava deposits in the Deccan.
Which of the above statements are correct?

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. (a),(b) and (c)

  2. (a) and (c)

  3. (b) and (d)

  4. None of them

Show answer
Correct Option: B
Explanation:
  • Alluvial Soils are formed by the deposition of silt by the rivers. 
  • The black soil is formed in the Deccan region on account of climatic conditions here and the basalt rock which is the parent rock for this soil is also an important factor for the formation of black soil. Black soil is sticky and possesses high moisture retention capacity. 
  • The main reason for laterite soils formation is due to intense leaching. Leaching happens due to high tropical rains and high temperatures. As a result of high rainfall, lime and silica are leached away, and soils rich in iron oxide and aluminum compound are left behind.

In which state, terrace farming is practised?

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. Punjab

  2. Haryana

  3. Plains of Uttar Pradesh

  4. Jammu and Kashmir

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Correct Option: D
Explanation:

Terrace farming is a type of farming that was developed first by the Indian people. This method of farming uses steps called andenes that are built into the side of a mountain or hill.

In the lower parts of the stratosphere, there is no change in temperature with altitude. This zone is called ________.

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. Thermosphere

  2. Isothermal Zone

  3. Ozone layer

  4. Ionosphere

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Correct Option: B
Explanation:

In the lower parts of the stratosphere, there is no change in temperature with altitude. This zone is called isothermal zone
An isothermal layer is defined as a vertical column of air having a constant temperature with height. Isothermal layers often occur in the low levels of the troposphere during a differential advection situation.

The part of atmosphere which is consists of variable gasses with unknown composition is called ____________.

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. Hetrosphere

  3. Homosphere

  4. None of these

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Correct Option: B
Explanation:

The part of the atmosphere which is consists of variable gasses with unknown composition is called Hetrospere.
The heterosphere is the upper portion of the Earth's atmosphere, in which gases are fractionated according to their molecular weight. It lies above the homosphere, where chemical constituents are well mixed.

Percentage of oxygen in the earth's 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. 21%

  2. 78%

  3. 20.94%

  4. 10%

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Correct Option: A
Explanation:

According to NASA, the gases in Earth's atmosphere include: Nitrogen — 78 percent. Oxygen — 21 percent. Argon — 0.93 percent.

Our country India is one of the twelve __________ countries of the world.

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. Densely populated

  2. Economically developed

  3. Mega bio-diversity

  4. None of the above

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Correct Option: C

How many biosphere reverses have been set up in the country to protect flora and fauna?

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. Fifteen

  2. Sixteen

  3. Seventeen

  4. Fourteen

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Correct Option: D

The most abundant constituent of dry air in terms of volume 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. carbon dioxide

    2. nitrogen

    3. oxygen

    4. none of these

    Show answer
    Correct Option: B
    Explanation:

    Nitrogen is important gas of which about 78% of the atmosphere's volume is made up. Nitrogen serves mainly as a diluent. It is relatively inactive chemically, though many f its compounds are very active. Its main function in the atmosphere is to regulate combustion by diluting oxygen. It also indirectly helps in oxidation of different kinds.

    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.