The Oort cloud is estimated to be about __________ AU away from the sun?

Related Mcqs:

1. The Kuiper belt and Oort cloud were first proposed by?

   A. Dutch astronomer Kuiper in 1950
   B. Dutch astronomer Jan Oort in 1950
   C. Dutch astronomer Kuiper Oort in 1950
   D. French astronomer Jan Oort and Kuiper in 1950

   Submitted by: Muhammad Abdullah

2. Earth is closest to the sun every year in early ______________, when it’s winter for the Northern Hemisphere. We’re farthest away from the sun in early __________________, during our Northern Hemisphere summer.

   A. January – July
   B. June – December
   C. July – January
   D. December – June

   Submitted by: Mansoor Ul Haque

3. When in the part of its orbit closest to the Sun, Pluto has an atmosphere of nitrogen and methane similar to Triton’s, but what happens when it is farther from the Sun ?

   A. These gases are not present
   B. These gases are like plasma
   C. These gases are frozen 
   D. These gases are volatile

   Submitted by: Muhammad Abdullah

4. The Sun is at an average distance of about________ million kilometers away from Earth?

   A. 100 million
   B. 150 million
   C. 200 million
   D. 250 million

   Submitted by: Noor Hussain Jamali

5. In middle latitudes, which cloud will have the lowest base ________________________ ?

   A. Cirrostratus
   B. Stratocumulus
   C. Altocumulus
   D. Cirrus

   Submitted by: Mansoor Ul Haque

6. Huge cloud of gass and dust in the universe is called?

   A. Constellation
   B. Satellite
   C. Meteorite
   D. Nebula

   Submitted by: Mansoor Ahmed Suhag

7. The Sun is a __________?

   A. Star
   B. Planet
   C. Asteroid
   D. Meteor

8. Ozone layer protects the Earth from __________ radiations from the Sun.

   A. microwaves
   B. infrared
   C. X-rays
   D. ultraviolet

   Submitted by: Aamir Hussain Laghari

9. Nearest star to sun is: __________?

   A. Proxima Centurai
   B. Alpha Scorpii
   C. Beta Orionis
   D. Vega

   Submitted by: Sajid Hussain Gopang

10. The sun has a __________ year solar cycle during which its activity increases and decreases.

    A. 10
    B. 11
    C. 12
    D. 13

    Submitted by: Muhammad Abdullah