Universe And Solar System (World Geography) (Part-1)

Total Questions: 50

41. Which of the following elements occurs most abundantly in our universe? [S.S.C. Online CHSL (T-I) 14.10.2020 (Shift-II)]

Correct Answer: (a) Hydrogen
Solution:Hydrogen elements occur most abundantly in our universe.
  1. Hydrogen has just one proton and one electron.
  2. It's the only element without a neutron.
  3. The simplest form of the element makes it abundant in the universe

42. Which planet is made up of thick white and yellowish clouds of Sulfuric acid? [S.S.C. Online CHSL (T-I) 13.10.2020 (Shift-III)]

Correct Answer: (a) Venus
Solution:The atmosphere of Venus consists mainly of carbon dioxide (CO₂), and along with it, sulfuric acid (H₂SO₄) is also present in the atmosphere in the form of droplets.

43. Who discovered the solar system? [S.S.C. Online Constable GD 12.02.2019 (Shift-II)]

Correct Answer: (a) Copernicus
Solution:The idea of the solar system was introduced by the Polish astronomer Nicolaus Copernicus. He was the first to say that the Sun is at the center of the Solar System, while all the planets, including the Earth revolve around it.

44. Asteroids are a belt of debris found between which among the following planets? [S.S.C. Online Constable GD 3.03.2019 (Shift-II)]

Correct Answer: (d) Mars and Jupiter
Solution:The empty space between Mars and Jupiter is known as the asteroid belt. Asteroids are rocky fragments left aver from the formation of the solar system about 4.6 Million years ago. The fourth planet is Mars and the fifth one is Jupiter.

45. During the phenomenon of aphelion, the approximate distance between the earth and the sun is [S.S.C. Online CHSL (T-I) 12.10.2020 (Shift-II)]

Correct Answer: (b) 152 million km
Solution:During the Aphelion phenomenon, the distance of the Sun from the Earth is maximum, ie, about 152 million km. During the perihelion phenomenon, the distance between the Earth and the Sun is minimum ie, about 147 million km.

46. The moon is an example of a object. [S.S.C. Online CHSL (T-I) 16.10.2020 (Shift-II)]

Correct Answer: (a) non-luminous
Solution:The Moon is the only satellite of the Earth with no light of its own.
Hence, it is an example of a non-luminous object.
Instead, the Moon shines because of the light reflected from the Sun.

47. The moon completes __________ rotation on its axis as it completes one revolution around the Earth [S.S.C. Online CPO SI (T-I) 09.11.2022 (Shift-I)]

Correct Answer: (c) 1
Solution:
  1. The moon completes one rotation on its axis as it completes one revolution around the Earth.
  2. This is why we always see the same side of the moon facing Earth.
  3. The time taken by the moon to complete one rotation on its axis is approximately 27.3 days, which is also the same amount of time it takes to complete one orbit around the Earth.

48. The study of universe is known as________ . [S.S.C. Online CHSL (T-I) 9.01.2017(Shift-III)]

Correct Answer: (a) Cosmology
Solution:The study of the universe is known as 'cosmology". The study of the effect of planets and constellations on humans is known as 'Astrology and the study of earthquakes is known as "Seismology". Limnology is the study of internal water sources (lakes, reservoirs, rivers, etc.).

49. The outermost layer of the Sun is known as [S.S.C. Online C.G.L.(T-I) 3.09.2016 (Shift-II)]

Correct Answer: (d) Corona
Solution:Corona is the outermost layer of the Sun. It experiences a very high temperature, about one million degrees Celsius. It starts at about 2100 km above the photosphere. The Corona isn't visible from the earth (except during solar eclipses). The Corona does not have an upper limit.

50. The outermost layer of sun is called _______ . [S.S.C. Online C.G.L. (T-I) 10.09.2016 (Shift-III)]

Correct Answer: (d) Corona
Solution:Corona is the outermost layer of the Sun. It experiences a very high temperature, about one million degrees Celsius. It starts at about 2100 km above the photosphere. The Corona isn't visible from the earth (except during solar eclipses). The Corona does not have an upper limit.