Earth's Origin and Evolution — Important Questions
Gujarat Board · Class 11 · Geography
45 important questions from Earth's Origin and Evolution for Gujarat Board Class 11 Geography, with answers. Includes multiple choice, multiple correct.
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Important Questions from Earth's Origin and Evolution
Which of the following are terrestrial planets?
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Mercury, Venus, Earth, Mars
Terrestrial planets are the inner, rocky planets of our solar system. Mercury, Venus, Earth, and Mars are terrestrial planets, while Jupiter, Saturn, Uranus, and Neptune are Jovian (gas giant) planets.
The Sun's surface temperature is approximately 6000°C.
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True
The Sun's surface temperature is indeed about 6000°C, while its center temperature is about 1.5 crore degrees celsius.
Which scientists presented the Planetsimal Hypothesis?
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T. C. Chamberlain, Forest Ray Moulton
T. C. Chamberlain and Forest Ray Moulton, two American scientists, presented the Planetsimal Hypothesis in 1900. It was later supported by Sir James Jeans and Sir Harold Jeffrey.
Life on Earth originated approximately 3.8 billion years ago.
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True
Life began some 3.8 billion years back, in the form of microscopic organisms in oceanic waters. It started as unicellular organisms like amoeba.
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