Tag: geography

Questions Related to geography

The uppermost layer of the atmosphere 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. Ionosphere

  2. Exosphere

  3. Stratosphere

  4. Troposphere

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Correct Option: B

Which of the following gases protects us from harmful sun rays?

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. Carbondioxide

  2. Nitrogen

  3. Ozone

  4. Sulphurdioxide

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Correct Option: C
Explanation:

Ozone is an inorganic molecule which is formed by three atoms of oxygen. It is an allotrope of oxygen. Ozone protects us from harmful sun rays. It is present in ozonosphere region of stratosphere. Ozone layer absorbs dangerous UV radiation from sun rays. It protects us from skin cancer and other health damage. However, ozone layer is depleting due to harmful gases like CFCs, i.e. Chlorofluorocarbons.

Ozone is present in which of the layers of atmosphere ____________.

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. Stratosphere

  3. Mesosphere

  4. Ionosphere

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Correct Option: B
Explanation:

Ozone is present in  the Stratosphere. This region is known as ozonosphere. This region contains high concentrations of ozone in comparison to other parts of the atmosphere. It absorbs UV light radiations coming from sun and protect the earth. Ozone is mainly found in the lower portion of the stratosphere.

 Anything that brings a change to the natural composition of air 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. disaster

  2. cyclone

  3. pollutant

  4. hazard

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Correct Option: C
Explanation:
Anything that brings a change to the natural composition of air is known as pollutant.
Air pollution occurs when harmful or excessive quantities of substances including gases, particles, and biological molecules are introduced into Earth's atmosphere.
The common air pollutants are: Particulate matter $(PM10$ and $PM2.5)$ Ozone $(O^3)$ Nitrogen dioxide (NO2) Carbon monoxide $(CO)$.

What is the reason for the Troposphere to be at a greater height at the Equator?

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. Conventional currents

  2. Conduction

  3. Terrestrial radiation

  4. All of above

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Correct Option: A

Layer where the atmosphere thins out and merges with interplanetary space 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. Mesosphere

  2. Ionosphere

  3. Troposphere

  4. Exosphere

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Correct Option: D
Explanation:

Layer where the atmosphere thins out and merges with interplanetary space is called exosphere. Exosphere is the outermost layer of the Earth's atmosphere. It extends from about 600 km until it thins out to merge with interplanetary space. Due to this, exosphere is about 10,000 km or 6,200 miles thick or about as wide as the Earth. The top boundary of Earth's exosphere extends about halfway to the Moon.

In which layer of the atmosphere all the weather and climate phenomenon take place?

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. Thermosphere

  3. Troposphere

  4. Stratosphere

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Correct Option: C
Explanation:

Troposphere,

The troposphere is the lowermost layer of the Earth's atmosphere. Most of the weather phenomena, systems, convection, turbulence and clouds occur in this layer, although some may extend into the lower portion of the stratosphere. 

The troposphere contains almost all the atmospheric water vapour, in fact it contains about 70 to 80 per cent of the total mass of the Earth's atmosphere and 99 per cent of the water vapor. Temperature and water vapor content in the troposphere decrease rapidly with altitude and thus most of the water vapour in the troposphere is concentrated in the lower, warmer zone. Water vapor concentrations vary with latitude. They are greatest above the tropics and decrease toward the polar regions.

Since many years, oxygen parlours has been in existence in _______.

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. India

  2. France

  3. Japan

  4. Malaysia

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Correct Option: C
Explanation:

Since many years, oxygen parlours has been in existence in Japan.
An oxygen bar or parlour is an establishment, or part of one, that sells oxygen for recreational use. Individual flavored scents may be added to enhance the experience. The flavors in an oxygen bar come from bubbling oxygen through bottles containing aromatic solutions before it reaches the nostrils. Most bars use food-grade particles to produce the scent, but some bars use aroma oils.

Which part of the atmosphere is called homosphere?

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. Atmosphere up to 70 km from the surface of the earth

  2. Atmosphere up to 80 km from the surface of the earth

  3. Atmosphere up to 90 km from the surface of the earth

  4. Atmosphere up to 110 km from the surface of the earth

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Correct Option: C
Explanation:
 Atmosphere up to 90 km from the surface of the earth
Homosphere can be defined as the lowest part of the Earth’s atmosphere. It lies between the heterosphere and the surface of the earth. It is the earth’s atmosphere below the altitude of roughly 80 kms where there is an almost-homogenous composition of nitrogen (78%), oxygen (21%), argon (10%), carbon dioxide as well as traces of constituents like dust particles, aerosols and cloud droplets.

Description: The Earth’s atmosphere has two major zones or segments – homosphere and heterosphere. The homosphere is the lower segment of the two-part division of atmosphere and further consists of three regions namely troposphere, stratosphere and mesosphere. All the three regions have the same composition of air. However, the concentration of air keeps decreasing significantly as the altitude increases. 

The part of the atmosphere above the 90 km from the earth 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. homosphere

  2. heterosphere

  3. ozone layer

  4. mesosphere

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Correct Option: B
Explanation:

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. On average the heterosphere begins at an altitude of about 80 km.