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The ozone layer is at height of how much kilometers from the surface of the Earth?

The ozone layer is found at a height of about 20 to 30 kilometers above the surface of the Earth. It lies in a part of the atmosphere called the stratosphere. This layer is very important for life on Earth.

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1 EVERYDAY SCIENCE MCQS

The ozone layer is at height of how much kilometers from the surface of the Earth?

  • 30 to 40
  • 10 to 20
  • 40 to 50
  • 20 to 30
Correct Answer: D. 20 to 30

Detailed Explanation

The ozone layer is found at a height of about 20 to 30 kilometers above the surface of the Earth. It lies in a part of the atmosphere called the stratosphere. This layer is very important for life on Earth.

The ozone layer acts like a shield. It protects all living things by blocking most of the harmful ultraviolet (UV) rays from the Sun. Without this layer, too much UV light would reach Earth, causing more skin cancer, eye problems, and damage to plants and animals.

Though the ozone layer is made up of a gas called ozone (O₃), it is not very thick. In fact, if you brought all the ozone in the atmosphere down to Earth’s surface, it would form a layer only a few millimeters thick. But even this thin layer plays a huge role in keeping life safe.

Let’s review the options:
- 10 to 20 km is below the main range of the ozone layer.
- 30 to 40 km and 40 to 50 km are too high for the densest part of the ozone layer.
- 20 to 30 km is the correct range where the majority of ozone is found.

Due to human activities, some harmful gases (like CFCs) damaged the ozone layer in the past, creating a hole. But thanks to global efforts and international agreements, this damage is slowly being repaired.

So, the right answer is: 20 to 30 kilometers.

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Everyday Science MCQs
The main function of kidney is?
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Everyday Science MCQs
The energy stored in a dam is?
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Everyday Science MCQs
Moon light reaches to earth in __________ seconds?
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Everyday Science MCQs
Who developed the telegraph code?
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Everyday Science MCQs
How many numbers of chromosomes in Pea plant?
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Everyday Science MCQs
Which of these plants opens its mouth when an insect sits on its lid?
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Everyday Science MCQs
Which of the following are positively (+) charged particles?
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Everyday Science MCQs
Which of the following subatomic particles carries a negative electric charge?
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Everyday Science MCQs
Which of the following has no electric charge?
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Everyday Science MCQs
Elements are made of _________?
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Everyday Science MCQs
SI unit of time is_________?
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Everyday Science MCQs
The speed of light is __________?
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Everyday Science MCQs
The soul of chemistry is dealing with __________?
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Everyday Science MCQs
Which one is the most common disease?
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Everyday Science MCQs
Orange belongs to the family
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Everyday Science MCQs
Vertebral Column in human beings consists of how many vertebrae?
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Everyday Science MCQs
What is anything that takes up space and has mass?
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Everyday Science MCQs
All matter is made of ___________?
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Everyday Science MCQs
What are considered the building blocks of matter?
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Everyday Science MCQs
What are the three subatomic particles of an atom?
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Everyday Science MCQs
The protons and neutrons are found in the center of the atom, which is called the _________of the atom?
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