What is the approximate temperature of the Sun’s surface?
a. 1,000°C
b. 6,000°C
c. 10,000°C
d. 20,000°C
Answer: b. 6,000°C
Which gas is essential for photosynthesis and is present in Earth’s atmosphere?
a. Carbon dioxide
b. Nitrogen
c. Oxygen
d. Hydrogen
Answer: a. Carbon dioxide
In which direction does the Earth rotate on its axis?
a. East to West
b. West to East
c. North to South
d. South to North
Answer: a. East to West
What is the name of the North Star used for navigation in ancient times?
a. Sirius
b. Polaris
c. Vega
d. Betelgeuse
Answer: b. Polaris
Which planet is known as the “Morning Star” or “Evening Star”?
a. Mars
b. Venus
c. Mercury
d. Jupiter
Answer: b. Venus
What is the shape of the Earth’s orbit around the Sun?
a. Circular
b. Elliptical
c. Rectangular
d. Spiral
Answer: b. Elliptical
What is the primary factor behind the changes in water cycle, weather, and seasons on Earth?
a. Moon
b. Sun
c. Stars
d. Planets
Answer: b. Sun
Which Indian astronomer is considered intelligent and contributed to astronomy?
a. Kalpana Chawla
b. Aryabhatta
c. Srinivasa Ramanujan
d. C.V. Raman
Answer: b. Aryabhatta
What is the distance of the Sun from the Earth?
a. 1 million kilometers
b. 50 million kilometers
c. 150 million kilometers
d. 500 million kilometers
Answer: c. 150 million kilometers
What is the period of the Earth’s revolution around the Sun?
a. 30 days
b. 90 days
c. 180 days
d. 365 days
Answer: d. 365 days
What is the nearest star to the Earth, other than the Sun?
a. Alpha Centauri
b. Proxima Centauri
c. Betelgeuse
d. Sirius
Answer: b. Proxima Centauri
