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