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#9657 Medium General Science GENERAL SCIENCE

The Earth rotates around the sun from _____

The Earth rotates around the sun from _____

A

north to south

B

south to north

C

east to west

D

west to east

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The correct answer is A.

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Explanation The sun rises in the East and sets in the West. which means that the Earth is rotating from West to East.  Earth revolves in orbit around the Sun in 365 days, 6 hours, 9 minutes. with reference to the stars, at a speed ranging from 29.29 to 30.29 km/s. The 6 hours, 9 minutes add up to about an extra day every fourth year, which is designated a leap year, with the extra day added as February 29th.

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#9658 Medium General Science GENERAL SCIENCE

CNES is the space agency of which country?

CNES is the space agency of which country?

A

France

B

Japan

C

Russia

D

Germany

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The correct answer is A.

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Explanation CNES is a space agency in France CNES stands for National Centre for Space Studies. CNES Formed  in 19 December 1961

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#9659 Medium General Science GENERAL SCIENCE

The minimum current which can get human in comma is :

The minimum current which can get human in comma is :

A

10 micro ampere

B

2 milli ampere

C

10 milli ampere

D

100 milli ampere

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The correct answer is A.

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Explanation The correct option will be 2 milliamperes ( according to the NTS answer key). ***** In reality, 2 mA typically causes a mild tingling sensation or a slight shock, but it is not enough to cause severe injury or put someone into a coma. For a current to potentially cause a coma, it usually needs to be in the range of 50 to 100 mA.

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#9660 Medium General Science GENERAL SCIENCE

The natural satellite of Earth is known as:

The natural satellite of Earth is known as:

A

Sun

B

Asteroid

C

Moon

D

None

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The correct answer is A.

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Explanation The  moon is a satellite  because it  moves around Earth. Earth and the moon  are called " natural " satellites. ND5-07-2023

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#9661 Medium General Science GENERAL SCIENCE

What is the percentage of nitrogen gas in air?

What is the percentage of nitrogen gas in air?

A

98%

B

58%

C

88%

D

78%

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The correct answer is D.

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Explanation The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.

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#9662 Medium General Science GENERAL SCIENCE

The rod cells of retina are responsible for vision in?

The rod cells of retina are responsible for vision in?

A

Bright Light

B

Dim light

C

Summary atmosphere

D

Shiny atmosphere

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The correct answer is A.

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Explanation Rod cells are responsible for vision in low light conditions, such as at night or in dimly lit environments. They are more sensitive than cone cells and can detect even a single photon of light.

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#9663 Medium General Science GENERAL SCIENCE

A device that opposes the flow of electrons in electronic circuits is called?

A device that opposes the flow of electrons in electronic circuits is called?

A

Transformer

B

Diode

C

Transistor

D

Resistor

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The correct answer is A.

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Explanation The component of an electric circuit that opposes the flow of charges in the circuit is called a resistor .

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#9664 Medium General Science GENERAL SCIENCE

The process in which nuclei of heavy elements are broken into lighter nuclei and

The process in which nuclei of heavy elements are broken into lighter nuclei and produce a large amount of heat energy is called?

A

Fusion

B

Geometry

C

Regales

D

Fission

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The correct answer is A.

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Explanation Fission is the splitting of a nucleus that releases free neutrons and lighter nuclei. The fission of heavy elements is highly exothermic which releases about 200 million eV compared to burning coal which only gives a few eV.

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#9665 Medium General Science GENERAL SCIENCE

The study about celestial objects of the universe is called?

The study about celestial objects of the universe is called?

A

Geometry

B

Geography

C

Archaeology

D

Astronomy

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The correct answer is A.

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Explanation The telescope is undoubtedly the most important investigative tool in  astronomy. A celestial body that revolves around a planet is known as a  natural satellite .

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#9666 Medium General Science GENERAL SCIENCE

The brightest star visible in the sky without a telescope is?

The brightest star visible in the sky without a telescope is?

A

Altair

B

Aretonus

C

Regulus

D

Sirius

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The correct answer is A.

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Explanation Sirius  is the brightest star in the night sky. Sirius means صبح کا ستارہ