Environmental Studies · Geography

Atmospheric Structure and Ozone

1,319 Questions

Atmospheric structure and ozone layer topics examine the Earth's atmospheric layers, the impact of solar radiation, and ozone depletion mechanisms. These environmental science concepts are crucial for general awareness sections in multiple competitive examinations. Review these questions to solidify your understanding of the stratosphere, polar vortex effects, and greenhouse gases.

Earth's atmospheric layersOzone layer depletionSolar ultraviolet radiationPolar vortex effectsCarbon dioxide impactOzone-depleting substances

Atmospheric Structure and Ozone Questions

Multiple choice evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

In which layer of atmosphere rainbow formation occurs?

  1. Mesosphere

  2. Stratosphere

  3. Ionosphere

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

Rainbows are optical phenomena caused by the refraction and reflection of light in water droplets, which are found in the troposphere where weather occurs.

Multiple choice evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

Which of the following layer of atmosphere receives an extraordinary amount of energy from the sun?

  1. Stratosphere

  2. Ionosphere

  3. Mesosphere

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The ionosphere contains high concentrations of ions and free electrons and is directly exposed to high-energy solar radiation, which causes ionization.

Multiple choice evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

Multiple Choice Questions
The zone of atmosphere In which ozone layer is present is

  1. Troposphere

  2. Stratosphere

  3. Mesosphere

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

Ozone is a triatomic gas forming a layer of protective shield against harmful radiations of the sun such as UV-B and UV-C. The ozone layer is present in the upper part of the atmosphere called Stratosphere.

So, the correct answer is option B, Stratosphere.

Multiple choice evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

The aurora is produced by:

  1. Reflections of sunlight by polar ice fields

  2. Fast-moving charged particles colliding with air molecules

  3. Burning oxygen caused by the intense sunlight at high altitude

  4. The combination of molecular and atomic oxygen to form ozone
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Auroras occur when charged particles from the sun (solar wind) collide with atoms and molecules in the upper atmosphere, exciting them and causing them to emit light.

Multiple choice evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

In which layer of atmosphere temperature remains constant?

  1. Mesosphere

  2. Thermosphere

  3. Stratosphere

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

In the stratosphere, the temperature increases with altitude due to ozone absorption of UV radiation, but there are regions where the temperature gradient is near zero or stable, often contrasted with the troposphere's lapse rate.

Multiple choice evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

Which is second major layer of earth's atmosphere?

  1. Troposphere

  2. Mesosphere

  3. Thermosphere

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

The layers of the atmosphere starting from the surface are: troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Therefore, the stratosphere is the second layer.

Multiple choice evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

Our atmosphere is made of many layers. The layers nearest to the surface of the earth is known as

  1. Geosphere

  2. Stratosphere

  3. Troposphere

  4. none of above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The troposphere is the lowest layer of the Earth's atmosphere, extending from the surface up to the tropopause.

Multiple choice

Which higher-frequency radiation gets blocked by Earth's atmosphere?

  1. x-rays

  2. radio waves

  3. gamma rays

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

Earth's atmosphere is opaque to high-energy, high-frequency radiation like X-rays and gamma rays, which are absorbed by the upper atmosphere. This protects life on the surface from harmful ionizing radiation.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

The lowest region of atmosphere is known as

  1. Stratosphere

  2. Ozonosphere

  3. Troposphere

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

The atmosphere comprises of layers based on temperature. Each layer has a specific composition of gases. These layers are the troposphere, the stratosphere, mesosphere and thermosphere. All these layers are placed to a different level from the earth. 

The troposphere is the lowest layer of the Earth's atmosphere. It starts at Earth's surface and goes up to a height of 7 to 20 km above sea level. Most types of clouds are found in this region, and almost all weather occurs within this layer. It holds nearly all of the water vapor in the Earth's atmosphere, regulates temperature and produces weather. Hence option C is correct.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Over heavily polluted areas of America and Europe, ozone level has fallen about

  1. 3%

  2. 7%

  3. 9%

  4. 2%
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Scientific assessments of stratospheric ozone depletion in the late 20th century estimated that ozone levels over heavily populated regions in the Northern Hemisphere had declined by approximately 3%.

Multiple choice biology living in harmony climate factors abiotic components organisms and environment

The primary source of energy for the earth's atmosphere is:

  1. Energy from within the earth

  2. The sun

  3. Erupting volcanoes

  4. Lightning discharges associated with thunderstorms
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sun provides the vast majority of the energy that drives atmospheric circulation, weather patterns, and the heating of the Earth's surface and atmosphere. Other sources like geothermal or volcanic activity are negligible in comparison to solar radiation.