Which layer of the Sun is visible to the naked eye?
A) Core
B) Corona
C) Photosphere
D) Chromosphere
What is the Sun primarily made of?
A) Oxygen and Nitrogen
B) Hydrogen and Helium
C) Carbon and Iron
D) Silicon and Magnesium
Which process generates energy in the Sun?
A) Nuclear fission
B) Nuclear fusion
C) Radioactive decay
D) Chemical combustion
Which part of the Sun has the highest temperature?
A) Core
B) Photosphere
C) Corona
D) Chromosphere
What is the approximate surface temperature of the Sun?
A) 1,000°C
B) 5,500°C
C) 10,000°C
D) 20,000°C
Which layer of the Sun extends millions of kilometers into space?
A) Photosphere
B) Core
C) Corona
D) Radiative zone
Which layer of the Sun lies between the core and the convective zone?
A) Corona
B) Radiative zone
C) Photosphere
D) Chromosphere
What element is primarily produced in the Sun’s core?
A) Oxygen
B) Helium
C) Carbon
D) Nitrogen
What are sunspots?
A) Cool, dark areas on the Sun’s surface
B) Hot plasma eruptions
C) Large solar flares
D) Gaseous clouds in space
Which phenomenon occurs when charged particles from the Sun interact with Earth’s atmosphere?
A) Aurora Borealis
B) Solar Eclipse
C) Sunspot Formation
D) Lunar Eclipse
What is the approximate age of the Sun?
A) 1 billion years
B) 4.6 billion years
C) 10 billion years
D) 15 billion years
What is a solar flare?
A) A sudden burst of energy from the Sun
B) A small planet near the Sun
C) A ring around the Sun
D) A type of solar eclipse
What force keeps the Sun’s gases from escaping into space?
A) Magnetic force
B) Gravity
C) Solar wind
D) Radiation pressure
What is the Sun’s outermost atmosphere called?
A) Corona
B) Photosphere
C) Chromosphere
D) Convective Zone
What is the importance of the Sun’s energy for Earth?
A) It provides gravity
B) It powers nuclear reactors
C) It supports life through heat and light
D) It generates ocean tides
Which part of the Sun is responsible for producing visible light?
A) Core
B) Radiative Zone
C) Photosphere
D) Chromosphere
What causes the Sun’s magnetic field?
A) Solar flares
B) Movement of charged particles in the Sun’s interior
C) Rotation of the Earth
D) The Moon’s gravity
How long does it take for sunlight to reach Earth?
A) 1 second
B) 8 minutes
C) 1 hour
D) 24 hours
What happens when the Sun exhausts its hydrogen fuel?
A) It will collapse into a black hole
B) It will expand into a red giant
C) It will explode in a supernova
D) It will turn into a neutron star
What is the Sun classified as?
A) Red Dwarf
B) White Dwarf
C) Yellow Dwarf
D) Blue Giant
Which phenomenon occurs when the Moon blocks the Sun’s light?
A) Solar eclipse
B) Lunar eclipse
C) Sunspot
D) Solar wind
Which term describes the continuous flow of charged particles from the Sun?
A) Solar wind
B) Sunspot
C) Solar flare
D) Cosmic radiation
Which zone of the Sun transfers energy mainly through radiation?
A) Convective Zone
B) Core
C) Radiative Zone
D) Photosphere
What is the primary function of the Sun for the solar system?
A) It controls planetary orbits
B) It provides oxygen
C) It generates tides
D) It emits cosmic rays
Which part of the Sun has convection currents that circulate energy?
A) Core
B) Radiative Zone
C) Convective Zone
D) Chromosphere
Which phenomenon is caused by the Sun’s gravitational influence on Earth?
A) Seasons
B) Earthquakes
C) Volcanic eruptions
D) Ocean tides
Which term describes the Sun’s impact on Earth’s climate and weather?
A) Solar Dynamics
B) Solar Activity
C) Solar Influence
D) Solar Radiation
What is the primary method by which the Sun loses energy into space?
A) Conduction
B) Convection
C) Radiation
D) Fusion
What is the approximate diameter of the Sun?
A) 1.4 million km
B) 100,000 km
C) 500,000 km
D) 10 million km
Which part of the Sun is the source of its intense light and heat?
A) Photosphere
B) Chromosphere
C) Core
D) Corona
