Tag: introduction to the spheres of the earth

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Questions Related to introduction to the spheres of the earth

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

Global environment consists of three segments, included:

  1. Atmosphere, Hydrosphere and biosphere

  2. Stratosphere, troposphere, psudosphere

  3. Core, mantle, surface

  4. Atmosphere, stratosphere, Hydrosphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The global environment is generally categorized into the atmosphere (air), hydrosphere (water), and biosphere (living organisms). These three components interact to support life on Earth.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

The factors which relate to form and behaviour of the Earth's surface are called as

  1. Edaphic

  2. Topographic

  3. Climatic

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

Topography is a field of geoscience and planetary science comprising the study of surface shape and features of the Earth and other observable astronomical objects including planets, moons, and asteroids. 

Edaphic qualities characterize the soil, including drainage, texture, or chemical properties, such as pH. 
Biotic components are the living things, that shape an ecosystem. 
A biotic factor is any living component, that affects another organism.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

Ozone shield is component of

  1. Troposphere

  2. Stratosphere

  3. Mesosphere

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

The ozone layer is present in the stratosphere above the Earth. The layer is present at a distance of about 20-30 km away from the surface of the Earth. The layer of ozone is responsible for the absorption of the harmful Ultraviolet radiations from the solar radiations. These radiations are prevented from entering the Earth's atmosphere to prevent the development of skin cancer

So, the correct answer is 'Stratosphere'

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

Ozone, shields the earth from the harmful ultraviolet rays from the

  1. Moon

  2. Mars

  3. Sun

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The ozone layer or ozone shield is a region of Earth's stratosphere which contains a high concentration of ozone ($O _3$) in relation to other parts of the atmosphere,
  • The ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (UVR) from the sun, protecting life on Earth from its potentially harmful effects.
  • Hence Ozone shields the earth from the harmful ultraviolet rays from the sun.
  • So, the correct answer is 'Sun'.
Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

The gas that shows the most variation from place to place and from time to time in the lower atmosphere ___________

  1. Ozone ($\displaystyle { O } _{ 3 }$)
  2. Carbon dioxide ($\displaystyle { CO } _{ 2 }$)
  3. Water vapor ($\displaystyle { H } _{ 2 }O$)
  4. Argon ($\displaystyle Ar$)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The layer of the atmosphere closest to the earth is the troposphere also known as the lower atmosphere fixed composition of various constituents of air namely the carbon dioxide, nitrogen, ozone, rare gases etc, but the amount of water vapour varies from place to place and from time to time.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

Lithosphere is divided into 

  1. Outer core

  2. Inner core

  3. Upper most solid mantle

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

The lithosphere is defined as the rigid outer layer of the Earth, consisting of the crust and the uppermost solid part of the mantle. It is distinct from the deeper, more fluid layers like the core.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

In which layer of the atmosphere is the ozone present ? 

  1. Mesosphere

  2. Troposphere

  3. Stratosphere

  4. Ionosphere
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the stratosphere, ozone molecules (three oxygen atoms) bonded together, prevent some of the Sun's most intense rays from reaching the Earth's surface. Currently, scientists and researchers worldwide are monitoring this layer; so thin at the South Pole, we call it a hole where the molecules are being very less.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

Which of these is the not the role of atmosphere ?

  1. Air is a good conductor of heat

  2. Air helps in transmitting sound

  3. Burning of fire takes place in presence of oxygen

  4. Ozone layer of atmosphere protects the living organisms from harmful radiations of sun
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Air is a bad conductor of heat and not a good conductor hence the temperature on the earth is maintained for life to exist unlike the other planets. Atmosphere prevents sudden increase in temperature during the day light hours. It slows down the escape of heat into outer space during the night.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

The upper most weathered layer of earth's crust is 

  1. Sand

  2. Organic matter

  3. Soil

  4. Minerals
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The earth that we live on is one of the planets of the solar system. Its crust is deep and we stay on its uppermost layer. The upper layer of earth is formed by soil. It can get weathered away due to external forces like water, wind etc.

So the correct answer is "Soil".