How many types of galaxies are there?
4
2
3
6
Central part of Sun is called,
Corona
Photosphere
Core
Convection zone
Which is the first planet known to have liquid water on the surface?
Mercury
Mars
Earth
Jupiter
Satellite used by military intelligence.
Reconnaissance Satellite
Weather Satellite
Astronomical Satellite
Communication Satellite
About 20% of all galaxies are
Circle
Spiral
Square
hemisphere
How many planets are there in the solar system ?
Nine
Eight
Seven
Six
The distance travelled by light in one year is called
Light year
Equator
Astronomical unit
Galaxy
The layer of the sun below corona is called,
chromosphere
photosphere
core
none of these
About what each planet rotate itself ?
Its rotation axis.
Center
Orbit
