What evidence did Wegener use to support his hypothesis of continental drift?

A) sea-floor spreading
B) paleoclimatic data
C) polar reversals
D) transform fault boundaries


Answer: B

Physics & Space Science

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How big is Earth on the 1-to-10 billion scale described in Section 1.2?

What will be an ideal response?

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An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N. The radius of the planet is 4.0 × 10^6 m. What is the mass of Planet X? (G = 6.67 × 10^-11 N × m2/kg2)

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a. x-rays b. visible light c. ultraviolet d. gamma-rays e. infrared radiation

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