Which of the following gases protect us from harmful sun rays ?
Ozone
The Sun emits ultraviolet radiation, and its shorter wavelengths (UV-B and UV-C) damage living cells, causing skin cancer, cataracts and harm to crops and plankton.
In the stratosphere, roughly 15 to 35 km above the Earth, a layer rich in ozone (O3) absorbs most of this ultraviolet radiation, which is why the thinning of the ozone layer by chlorofluorocarbons led to the Montreal Protocol of 1987.
Nitrogen makes up most of the atmosphere but does not screen ultraviolet rays; oxygen absorbs only the shortest wavelengths and supplies the raw material for ozone rather than forming the shield itself; carbon dioxide traps outgoing infrared heat and drives the greenhouse effect, not protection from the Sun's rays.
Ozone option is correct.
Similar Questions
Which village in Maharashtra developed the slogan: "We have our government in Delhi and Mumbai. But in our village we ourselves are the government"?
Which of the following factors does not contribute to the development of modern bureaucracy ?
Given below are two statements, one labelled as Assertion (A) and the other one is Reason (R):
Assertion (A): Unplanned growth of urbanisation in India leads to expansion of slums, decrease in standard of life and environmental degradation.
Reason (R): Lack of employment opportunities in rural areas is the main reason for people migrating to cities.
In the context of the above two statements, which among the following is correct?
Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R):
Assertion (A): The political culture approach doesn't focus on the attitudes of specific individuals like, the President or Prime Minister.
Reason (R): Political culture denotes how people view the political system as a whole and is often seen as the foundation of all political activities.
Select the correct answer from the codes given below:
Which type of policymaking requires making hard choices among policy alternatives?
One of the first European countries to oppose the process of 'Coca-Colonization' was .......................
Due to globalization trade, commerce, banking, finance, insurance, transportation, education, health, entertainment, administration, tourism, etc. in the city, increased means .................... is considered to have increased.
According to .................... the notion of 'time - space compression' attempts to erase the sense of local and its dynamics.
Industrial production in the nineteenth century was characterized by ..................
According to Castells the term 'Collective Consumption' refers to ....................
Important Questions from Mixed Topic (MH-SET)
.................... is a client server application that identifies each host on the internet with a unique user-friendly name.
Every OS has a ................ or .......... which primarily resides in the main memory of the computer to perform some of the basic functions of the OS.
(i) Kernel
(ii) Interface
(iii) Nucleus
(iv) Compiler
Codes:
Which of the following are referred to as low level language?
(i) Machine language
(ii) Assembly language
(iii) High level language
(iv) Natural language
Codes:
Match the following:
List I List II (a) New York Public Library (i) Shelv AR (b) Miami University Augmented Research Group (ii) Smart library (c) Oula University Library (iii) Wolf Walk (d) North Carolina State University (iv) Find the future Codes:
Which part of the QR code represents the encoded data?
