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Age of Sun and Earth
  • 1. What process powers the Sun's energy output?
A) Nuclear fission
B) Photosynthesis
C) Nuclear fusion
D) Chemical reactions
  • 2. What evidence supports the current understanding of the age of the Earth and the Sun?
A) Analysis of cloud patterns
B) Palm reading
C) Radiometric dating of rocks and meteorites
D) Oral traditions passed down through generations
  • 3. When did the solar system, including Earth and the Sun, form?
A) 10,000 years ago
B) 1 billion years ago
C) About 4.6 billion years ago
D) 500 million years ago
  • 4. What element is the Sun mostly composed of?
A) Oxygen
B) Hydrogen
C) Helium
D) Carbon
  • 5. What is the primary source of the Earth's internal heat?
A) Solar radiation
B) Tidal forces
C) Radioactive decay
D) Volcanic activity
  • 6. Which layer of the Sun is responsible for its visible light and heat?
A) Troposphere
B) Exosphere
C) Stratosphere
D) Photosphere
  • 7. Which layer of the Earth is divided into the lithosphere and asthenosphere?
A) Outer core
B) Inner core
C) Crust
D) Mantle
  • 8. What is the name of the theory that explains the origin of the solar system from a rotating cloud of gas and dust?
A) Steady State theory
B) Ptolemaic model
C) Big Bang theory
D) Nebular hypothesis
  • 9. What is the innermost layer of the Earth called?
A) Outer core
B) Mantle
C) Crust
D) Inner core
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