Quiz-About Universe:

01.Qns. What is universe?

Ans. Vast infinite body having millions of galaxies in space. 

02.Qns. How old is the Universe?

Ans. 15 Billion.

03.Qns. Where is the center of the Universe?

Ans. It has no center.

04.Qns. What fraction of the mass of the universe is ordinary, like hydrogen and helium?

Ans. 70%-80%

05.Qns. How many stars are in a typical galaxy?

Ans. 100 Billion.

06.Qns. What is the temperature of the Universe today?

Ans. 3º Kelvin.

07.Qns. Who made the discovery of expansion of the Universe?

Ans. Edwin Hubble.

08.Qns. Hubble law states that v = H˳r. What dose the Hubble constant H˳ mean?

Ans. The expansion rate of the universe.

09.Qns.  Quasars are the brightest objects in the universe. What dose their energy come from?

Ans. Matter falling into black hole.

10.Qns. How many galaxies are in a typical cluster?

Ans. 1000

11.Qns. The biosphere is divided into-

Ans. Lithosphere, hydrosphere and atmosphere.

12.Qns. Lithosphere consists of-

Ans. Rocks and minerals

13.Qns. Atmosphere-

Ans. Acts as a blanket surrounding the earth.

14.Qns. Inorganic matter is -

Ans. humus

15Qns. Which is the closest planet?

Ans. Mercury.

16.Qns. Which is the hottest star?

Ans. Sun.

17.Qns. Which is the closest galaxy?

Ans. Andromeda.

18.Qns. Which is the unique planet?

Ans. Earth.

19.Qns. Soil comes from the-

Ans. Latin word solum meaning earthly material.

20.Qns. Which is the hottest star?

Ans. Sun.