2437.
General Science & Ability
What causes Earth's seasons?
Earth's axial tilt as it orbits the Sun
View source Verified on 16 September 2026
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2438.
General Science & Ability
Approximately how long does Earth take to rotate once on its axis?
About 24 hours
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2439.
General Science & Ability
Approximately how long does Earth take to orbit the Sun once?
About 365.25 days
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2440.
General Science & Ability
Which planet is third from the Sun?
Earth
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2441.
General Science & Ability
What process powers the Sun?
Nuclear fusion
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2442.
General Science & Ability
What is the Sun primarily composed of?
Hydrogen and helium
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2443.
General Science & Ability
Approximately how old is the Sun?
About 4.6 billion years
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2444.
General Science & Ability
What is the main source of energy for Earth's climate system?
The Sun
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2446.
General Science & Ability
What is the approximate speed of light in a vacuum?
300,000 kilometres per second (about 3.0 × 10^8 m/s)
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2447.
General Science & Ability
What property of a sound wave primarily determines its pitch?
Frequency
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2448.
General Science & Ability
In which medium does sound generally travel fastest: gases, liquids, or solids?
Solids
View source Verified on 16 September 2026
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