The correct Answer is Only three pairs
Explanation
The question pertains to various theories and hypotheses concerning the origin and evolution of the Earth and the Universe, along with their proponents. Understanding these foundational concepts in cosmology and planetary science is essential.
Statement-wise Analysis
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Pair 1: Nebular Hypothesis - Immanuel Kant
Correct. Immanuel Kant, a German philosopher, put forth the Nebular Hypothesis in 1755. This hypothesis was later revised by Pierre-Simon Laplace in 1796.
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Pair 2: Expanding Universe - Edwin Hubble
Correct. Edwin Hubble provided observational evidence in 1929 that the universe is expanding. His observations showed that galaxies are moving away from each other, and the farther away they are, the faster they recede.
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Pair 3: Steady State - Hoyle
Correct. The Steady State theory was proposed by Hermann Bondi, Thomas Gold, and Fred Hoyle in 1948. Fred Hoyle was a prominent advocate and developer of this theory, which posited that the universe has always looked the same and is continuously creating matter to maintain its density as it expands.
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Pair 4: Binary Star Theory - Laplace
Incorrect. The Binary Star Theory, also known as the Tidal Hypothesis, was primarily proposed by James Jeans and Harold Jeffreys. Laplace is associated with the revision of the Nebular Hypothesis, not the Binary Star Theory.
Key Takeaway
Accurate association of cosmological and planetary origin theories with their primary proponents is crucial for understanding the historical development of scientific thought in these fields.