1 |
The sun takes_____years to travel around the galaxy. |
One hundred years
One millions years
225 million years
225 years
|
2 |
Constellation is: |
Classification of stars satellites
Classification of stars
patterns or groups of stars in the sky
Patterns or groups of satellites in the sky
|
3 |
The theory about the beginning of the universe by a huge explosion is called: |
Binary
Black Hole
Big Bang
Steady state
|
4 |
The lowest zone of atmosphere containing about seventy-five percent of total mass of Atmosphere and ninety percent of of its water vapour is called: |
Troposphere
Ionosphere
Aerosphere
Stratosphere
|
5 |
Minor objects in irregular shapes orbiting the sun are called |
Vessel
Asteroid
Meteors
Comet
|
6 |
The rarest gas in the air is |
Neon
Carbon Dioxide
Helium
Oxygen
|
7 |
Sunlight is composed of: |
6 colours
7 colours
8 colours
9 colours
|
8 |
A rocket needs the speed of______to escape from earth's gravity.
|
22 miles per sec
15 miles per sec
12 miles per sec
7 miles per sec
|
9 |
Acceleration caused by gravity is : |
23 feet per sec
32 feet per sec
42 feet per sec
52 feet per sec
|
10 |
Acceleration caused by gravity is : |
23 feet per sec
32 feet per sec
42 feet per sec
52 feet per sec
|