Tag: what is around us?

Questions Related to what is around us?

The atmospheric layer nearest to the earth's surface 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. Troposphere

  2. Stratosphere

  3. Measosphere

  4. Thermosphere

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Correct Option: A

The vertical movement of air 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. Cyclone

  2. Air current

  3. Wind

  4. Land breeze

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Correct Option: B

Atmosphere is classified into different zones, which of the following is not among this classification?

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. Ozonosphere

  3. Lithosphere

  4. None of these

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Correct Option: C
Explanation:

In the given options, ionosphere and ozonosphere are included in atmosphere.  Ionosphere consists of ions due to ultra violet radiations causing photo ionization and hence forming ionosphere. Ozonosphere is also called as stratosphere which consists of ozone gases that prevents UV rays from entering the earth’s surface. On the other hand lithosphere is not a layer of atmosphere but it is a hard surface consisting of rocks on earths surface.

Which of the following layers of atmosphere absorb UV light radiations?

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. Ozonosphere

  3. Troposphere

  4. None of these

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Correct Option: B
Explanation:

Layer of atmosphere which absorbs UV light radiations is known as ozonosphere. It is a region of Earth's stratosphere. This region contains high concentrations of ozone in comparison to other parts of the atmosphere. Ozonosphere is mainly found in the lower portion of the stratosphere. This layer protects earth from harmful UV light radiations.

_____ consists of a large number of gases.

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. Hydrosphere

  2. Lithosphere

  3. Atmosphere

  4. Biosphere

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Correct Option: C
Explanation:

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.

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 gas is present in large quantity in atmosphere?

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. Oxygen

  2. Hydrogen

  3. Nitrogen

  4. Methane

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Correct Option: C
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. Among all the gases present in atmosphere, nitrogen constitutes highest amount. Percentage of nitrogen present in atmosphere is 78.

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 $(CO)$.