International News-Scientific and Technological Developments [Current Affairs]: Questions 362 - 364 of 402

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Question 362

Scientific and Technological Developments
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Question

MCQ▾

Consider the following statements.

NASA’s ICESat-2,

I. It should provide more precise information on how these frozen surfaces are being affected by global warming.

II. ICESat-2’s Advanced Topographic Laser Altimeter System (ATLAS) measures height by timing how long it takes individual light photons to travel from spacecraft to Earth & back.

Choices

Choice (4)Response
a.Only II is true
b.I & II are true
c.Only I is true
d.None of the above

Question 363

Scientific and Technological Developments
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Question

MCQ▾

Consider the following statements.

Recent study by NASA has confirmed recovery of ozone layer due to

I. Presence of chlorine from Chlorofluorocarbon (CFC) in atmosphere.

II. Absence of chlorine from Chlorofluorocarbon (CFC) in atmosphere.

Choices

Choice (4)Response
a.I & II are true
b.Only II is true
c.Only I is true
d.All of the above

Question 364

Scientific and Technological Developments
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Question

MCQ▾

Consider the following statements

New Definitions Kilogram & Metre

I. Kilogram: Definition of kilogram is changed from being mass of prototype sanctioned by 1st CGPM held in Paris in 1889 & deposited at BIPM to Planck constant, which is physical constant.

II. Metre: Definition of metre is changed to link it to speed of light. There is change in definition of time also.

Choices

Choice (4)Response
a.I & II are tru
b.Only II is true
c.Only I is true
d.None of the above