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

The solar cycle is a nearly periodic change in the Sun’s activity between the time where we can observe the most and least number of sunspots, and generally lasts around 11 years. Sometimes the surface of the Sun is very active with lots of sunspots, while other times it is quieter with only a few or even none.

Related Mcqs:

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
Which gas was discovered on the sun about 151 years ago during total solar eclipse?
A. Hydrogen
B. Helium
C. Nitrogen
D. Flourine

Submitted by: Kashif Ashraf
In which type of solar eclipse the Sun’s center is covered by the moon, leaving its edges uncovered?
A. Partial Solar Eclipse
B. Total Solar Eclipse
C. Annular Solar Eclipse
D. None of the above

Submitted by: Ozeak Malik
__________ is the point in solar system at which pressure from the solar wind is equal to the opposing pressure of the interstellar medium.
A. Seliopause
B. Meliopause
C. Heliopause
D. Beliopause

Submitted by: Muhammad Abdullah
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
The solar wind creates a “bubble” around the solar system called?
A. Feliosphere
B. Seliosphere
C. Heliosphere
D. Peliosphere

Submitted by: Muhammad Abdullah
Which is correct order of solar system starting from Sun ?
A. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
B. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus
C. Mercury, Venus, Mars, Earth, Jupiter, Saturn, Neptune, Uranus
D. Mercury, Venus, Earth, Jupiter, Mars, Saturn, Uranus, Neptune

Submitted by: FAZAL ULLAH
Among the planets of the Solar system the position of the Earth from the Sun is:_________?
A. Second
B. Third
C. Fourth
D. Sixth

Submitted by: Jameel Ahmed Solangi (Larkana)
The sun is containing _______ % mass of the solar system?
A. 75.24%
B. 79.36%
C. 89.10%
D. 99.86%

Submitted by: Amin Lakhair
Solar wind is caused by the high temperature and pressure in the sun’s which atmosphere?
A. Photosphere
B. Chromosphere
C. Corona
D. A and B

Submitted by: Muhammad Abdullah