One Point Solution for All JKSSB | JKPSC Exams

<span style="background-image: linear-gradient(90deg, rgb(211, 227, 253) 50%, rgba(0, 0, 0, 0) 50%); background-position: 0% 0px; background-size: 200% 100%; background-repeat: no-repeat; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(4, 12, 40); animation: 0.75s cubic-bezier(0.05, 0.7, 0.1, 1) 0.25s 1 normal forwards running highlight; font-family: "Google Sans", Arial, sans-serif; font-size: 20px;">Edward Jenner coined the term vaccine and vaccination. It is derived from the cow smallpox. Edward Jenner is well known for his contribution to the eradication of smallpox and immunization. In 1790, he created the world`s first vaccine for smallpox.

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2. In which sphere Ozone layer depletion is found?

Ionosphere

Stratosphere

Lithosphere

Tatosphere

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Correct Answer : B
Explanation :

When chlorine and bromine atoms come into contact with ozone in <span style="background-image: linear-gradient(90deg, rgb(211, 227, 253) 50%, rgba(0, 0, 0, 0) 50%); background-position: 0% 0px; background-size: 200% 100%; background-repeat: no-repeat; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(4, 12, 40); animation: 0.75s cubic-bezier(0.05, 0.7, 0.1, 1) 0.25s 1 normal forwards running highlight; font-family: "Google Sans", Arial, sans-serif; font-size: 20px;">the stratosphere, they destroy ozone molecules. One chlorine atom can destroy over 100,000 ozone molecules before it is removed from the stratosphere.

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3. What is the dominating range of light wavelengths in the lower atmosphere?

Less than 100 nm

Greater than 300 nm

Between 100 and 300 nm

All wavelengths are equally present

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Correct Answer : B
Explanation :

In the lower layers of the atmosphere, the range of light wavelength that is most predominant is <span style="background-image: linear-gradient(90deg, rgb(211, 227, 253) 50%, rgba(0, 0, 0, 0) 50%); background-position: 0% 0px; background-size: 200% 100%; background-repeat: no-repeat; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(4, 12, 40); animation: 0.75s cubic-bezier(0.05, 0.7, 0.1, 1) 0.25s 1 normal forwards running highlight; font-family: "Google Sans", Arial, sans-serif; font-size: 20px;">between 400 and 700 nm, also referred to as visible light.

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General Science MCQs

science Questions with solutions MCQs

1. The term vaccine was introduced by

2. In which sphere Ozone layer depletion is found?

3. What is the dominating range of light wavelengths in the lower atmosphere?

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