Environmental Studies · Geography

Atmospheric Structure and Ozone

1,401 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

Where is the ozone layer located?

  1. Troposphere

  2. Stratosphere

  3. Mesosphere

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

The ozone layer is a region of the Earth's stratosphere that absorbs most of the sun's ultraviolet radiation.

Multiple choice physics science in daily life inventions and inventors in science scientists indian scientist: biography and achievements

Light pollution is caused when

  1. the ozone layer is damaged

  2. too much of light sources are used unnecessarily

  3. light sources pointing up to the sky rather than down to the earth

  4. sources of light are polluted
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Light pollution is primarily caused by the inefficient use of artificial light, specifically light that is directed upwards or sideways rather than being shielded and directed toward the ground where it is needed.

Multiple choice geography basic problems of an economy introduction to natural resources (eco) understanding development: perspectives, measurement and sustainability resources - types and conservation

Greenhouse effect which is responsible for climate change involves warming of __________.

  1. Troposphere

  2. Thermosphere

  3. Stratosphere

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

  • Trapping of sun’s heat in the earth’s atmosphere due to air pollution is called greenhouse effect. Greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide and ozone.
  • This effect which is responsible for climate change involves the warming of troposphere which is the closest layer of earth’s surface.

Multiple choice physics electromagnetic waves properties and uses of different radiation electromagnetic spectrum spectrum

Which of the following electromagnetic wave play an important role in maintaining the earths warmth or average temperature through the greenhouse effect? 

  1. Visible rays

  2. Infrared waves

  3. Gamma rays

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

Infrared radiation play an important role in maintaining the earths warmth or average temperature through the greenhouse effect.

The correct option is B.

Multiple choice physics electromagnetic waves properties and uses of different radiation electromagnetic spectrum spectrum

Which of the following is absorbed by the ozone layer ?

  1. only gamma rays

  2. visible light

  3. radio waves

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

Ozone is a molecule made of three oxygen atom or $O _3$. When ultraviolet light in the range $240nm$ and $320 nm$ strikes an ozone molecule, it absorbs the energy and the $O _3$ changes to $O _2$ and $O$. The $O$ atom soon combines with another $O _2$ molecule to form $O _3$ and is ready to absorb ultra violet light.

Multiple choice physics electromagnetic waves properties and uses of different radiation electromagnetic spectrum spectrum

What is the type of invisible radiation from space that can be detected from Earth's surface?

  1. Gamma rays

  2. X-rays

  3. Infrared radiation

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

Gamma rays are high-energy electromagnetic radiation from space. While most are absorbed by the atmosphere, they are the standard answer for invisible space radiation detected by specialized instruments.

Multiple choice physics electromagnetic waves properties and uses of different radiation electromagnetic spectrum spectrum

Which wavelength of harmful UV-radiations is prevented by ozone layer in entering the Earth atmosphere?

  1. $210-300nm$
  2. $200-310nm$
  3. $120-210nm$
  4. $400-700nm$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The ozone layer primarily absorbs UVC radiation (100-280 nm) and some UVB. The range 120-210 nm falls within the UVC spectrum, which is effectively blocked by the atmosphere.

Multiple choice physics electromagnetic waves properties and uses of different radiation electromagnetic spectrum spectrum

Radio waves do not penetrate in the band of

  1. ionosphere

  2. mesosphere

  3. troposphere

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

$Answer:-$ A option

The ionization of gas particles in the ionosphere aids in the transmission of radio waves by reflecting waves back to Earth, rather than allowing them to escape the atmosphere. Solar flares, the spontaneous eruption of high-energy radiation from the surface of the sun, can cause a sharp increase in the number of ionized particles in the upper atmosphere and can interfere with radio wave transmissions.

Multiple choice physics electromagnetic waves properties and uses of different radiation electromagnetic spectrum spectrum

Read the following statements.
a. Ozone in found mostly in the stratosphere.
b. Ozone layer lies 55-75 kms above the surface of the earth.
c. Ozone absorbs ultraviolet radiation from the Sun.
d. Ozone layer has no significance for life on the earth.
Which set of the statements is correct ?

  1. a and c

  2. b and d

  3. b and c

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

Ozone layer also called ozonosphere contains relatively high concentrations of ozone ($O _{3}$) molecules. Approximately 90% of atmospheric ozone occurs in stratosphere, the region extending from 10 - 18 km to 50 km above the earth's surface. The ozone layer effectively blocks certain types of ultraviolet and other forms of radiations that could injure or kill most living things.

Multiple choice

Which of the following is NOT a component of the environment?

  1. Atmosphere

  2. Hydrosphere

  3. Lithosphere

  4. Biosphere

  5. Exosphere
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The exosphere is not a component of the environment as it is the outermost layer of the Earth's atmosphere and is composed of extremely thin gases.

Multiple choice

Which of the following is an example of a random cause?

  1. The presence of oxygen in the atmosphere

  2. The presence of water on Earth

  3. The presence of life on Earth

  4. The presence of humans on Earth
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Random causes are not considered to be a type of historical causation because they are not predictable or controllable.

Multiple choice

What is the term used to describe the formation of ground-level ozone due to sunlight reacting with pollutants?

  1. Photochemical smog

  2. Acid rain

  3. Eutrophication

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

Photochemical smog is a type of air pollution that forms when sunlight reacts with pollutants like nitrogen oxides and volatile organic compounds, creating harmful ground-level ozone.

Multiple choice

Which of the following is NOT a potential biosignature that scientists look for when searching for extraterrestrial life?

  1. Oxygen in the atmosphere

  2. Methane in the atmosphere

  3. Water on the surface

  4. Carbon dioxide in the atmosphere
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Carbon dioxide in the atmosphere is not a potential biosignature that scientists look for when searching for extraterrestrial life. Carbon dioxide is a common gas that can be produced by both biological and non-biological processes. The presence of carbon dioxide in an atmosphere does not necessarily indicate the presence of life.