Question : The ozone layer protects us from:
Option 1: Cosmic rays
Option 2: Ultraviolet rays
Option 3: Visible rays
Option 4: Infrared rays
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Correct Answer: Ultraviolet rays
Solution : The correct option is Ultraviolet rays.
Living beings are protected from the sun's harmful UV radiation by the ozone layer, which is located between 15 and 30 kilometres above the surface of Earth. The ecosystem and human health may suffer significantly if the ozone layer is destroyed.
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Question : In a filament-type light bulb, most of the electric power consumed appears as
Option 1: visible light
Option 2: infrared rays
Option 3: ultraviolet rays
Option 4: fluorescent light
Question : Ozone layer above the surface of the Earth provides a shield against
Option 1: X- Rays
Option 2: Ultra-violet rays
Option 3: Gamma rays
Option 4: Infra-red Rays
Question : In which region of the electromagnetic spectrum does the Lyman series of hydrogen atoms lie?
Option 1: Visible
Option 2: Infrared
Option 3: Ultraviolet
Option 4: X-ray
Question : International Day for the Preservation of the Ozone Layer is observed on ______.
Option 1: September 13th
Option 2: September 10th
Option 3: September 16th
Option 4: September 18th
Question : Which of the following statements is not correct regarding the stratosphere?
Option 1: It lies above the mesosphere
Option 2: It extends up to a height of 50 km
Option 3: It contains a layer of ozone gas
Option 4: This layer is almost free from clouds.
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