Tag: introduction to the spheres of the earth

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Multiple choice geography earth as a planet spheres of earth earth and structure introduction to the spheres of the earth

The standard unit of measuring temperature is ____________.

  1. Calorie

  2. Hertz

  3. Degree celsius

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

SI Units: Temperature is Degree celsius

One degree Celsius is an interval of 1 K, and zero degrees Celsius is 273.15 K. An interval of one Celsius degree corresponds to an interval of 1.8 Fahrenheit degrees on the Fahrenheit temperature scale.

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 first life had appeared about 

  1. 4.8 billion years ago

  2. 3.8 billion years ago

  3. 1.4 billion years ago

  4. 2 billion years ago
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

About 3.8 billion years ago after the formation of earth, single celled prokaryotic cells (bacteria) appeared. It is supposed that the multicellular living organisms evolved from them. So, the correct option is B.

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

Transitional layer between stratosphere and mesosphere is ______________.

  1. Troposphere

  2. Lithosphere

  3. Stratopause

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

The atmosphere is divided into layers separated by transition zones called pauses. The stratopause is the boundary layer that separates the stratosphere from the mesosphere above it.

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

Thickness of ozone in column of air from ground to top of atmosphere is measured in terms of

  1. Decibel units

  2. Pascal units

  3. Svedberg units

  4. Dobson units

  5. Angstrom units
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A. Decibel (dB) is the unit to measure the intensity of sound.
B. Pascal (Pa) is the unit measure pressure.
C. Svedberg (S) is a non-metric unit used to express the sedimentation coefficient of particles. 
D. Dobson unit (DU) is used to measure the thickness of earth's atmosphere.
E. Angstrom (Å) is a unit of length used to express the size of atoms, molecules etc.
Hence, thickness of ozone in column of air from ground to top of atmosphere is measured in terms of Dobson units.
So, the correct answer is 'Dobson units'.
Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

What factor makes a man dominant species in biosphere?

  1. Body structure

  2. Ingenious brain power

  3. Powerful body

  4. Internal structure of body
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Humans are considered the dominant species in the biosphere primarily due to their advanced cognitive abilities. This brain power allows for complex problem-solving, tool creation, and environmental adaptation.

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

Where is the first Biosphere Reserve of India is located?

  1. Nilgiri

  2. Nanda Devi

  3. Sunder van

  4. Great Nicobar
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Nilgiri Biosphere Reserve, established in 1986, was the first biosphere reserve in India. It is located in the Western Ghats and encompasses parts of Tamil Nadu, Kerala, and Karnataka.