Tag: evs - i

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Questions Related to evs - i

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

Ionosphere is between :

  1. Stratosphere and mesosphere

  2. Mesosphere and thermosphere

  3. Troposphere and stratosphere

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

The ionosphere is an ionized region of the upper atmosphere that overlaps with the mesosphere and thermosphere, typically situated between them.

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

Ionosphere occurs in

  1. Thermosphere

  2. Homosphere

  3. Mesosphere

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

The ionosphere is not another atmospheric layer. It occupies the same region of the upper atmosphere as the thermosphere. In this region of the atmosphere the Sun's energy is so strong that it breaks apart molecules and atoms of air, leaving ions. So the correct answer is 'Thermosphere'.

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

Ozonosphere is component of

  1. Troposphere

  2. Stratosphere

  3. Mesosphere

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

Troposphere is the layer where all weather occurs. this is the lowest layer.

Above the troposphere lies the stratosphere where temperatures increase with altitude because of increasing amounts of ozone. The ozone layer within the stratosphere absorbs harmful ultraviolet rays of sunlight. After that comes mesosphere and thermosphere. 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

In thermosphere the temperature

  1. Rises with height to $200^0$ C
  2. Rises with height to $1500^0$ C

  3. First decreases then rises
  4. Decreases to - $150^0$ C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In the thermosphere, temperatures increase significantly with altitude due to the absorption of high-energy solar radiation, reaching temperatures up to 1500 degrees Celsius or more.

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

Lapse rate in troposphere is

  1. $3.1^0$ C/km
  2. $6.5^0$ C/km
  3. $9.8^0$ C/km
  4. $13.6^0 C/km
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Troposphere is the lowest layer in the earth's atmosphere. it is the same layer in which all the change in weather takes place. Lapse rate is the rate at which the temperature drops due to the difference in elevation. the more the altitude the more the drop in temperature is there. The lapse rate of $6.5$ is there for the level of $0$ to  $11,000$ m. This is the region in which troposphere lies. 

So, the correct answer is ' $6.5^oC$$/Km$. '

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 one is nearly absent in ozonosphere?

  1. Dust particles

  2. Water vapours
  3. CO$ _2$

  4. All the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. As the ozonosphere only contains high levels of ozone gas, therefore all the other things such as the dust particles. water vapours and CO2 are absent from it. 

So, the correct answer is 'All of the above. '

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

Mesosphere is component of

  1. Atmosphere

  2. Hydrosphere

  3. Lithosphere

  4. Both A and B
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Earth's atmosphere is divided into five main layers: the exosphere, the thermosphere, the mesosphere, the stratosphere and the troposphere. Therefore mesosphere is the second most layer of the atmosphere measure from the surface of the earth and is therefore a component of the atmosphere. The mesosphere is directly above the stratosphere and below the thermosphere. It extends from about 50 to 85 km (31 to 53 miles) above our planet.
So, the correct answer is 'Atmosphere'.
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 layer of atmosphere is important for telecommunications?

  1. Troposphere

  2. Ozonosphere

  3. Mesosphere

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

The thermosphere contains the ionosphere, which reflects radio waves back toward Earth and enables long-distance telecommunications and broadcasting. The other layers do not possess this key radio-wave reflecting property to the same extent.