How do concrete materials support Piaget's theory of preoperational intelligence?

How does the complete lack of volatiles in lunar rocks support the impact theory of the moons formation?

  • Materials, such as water, that become gaseous easily at a room temperature are called volatiles. How does the complete lack of volatiles in lunar rocks support the impact theory of the moons formation?

  • Answer:

    The lack of volatiles in lunar rock is explained by the energy of the collision and the energy liberated during the accretion of material in orbit about the Earth. This energy would be sufficient to completely melt the proto-Moon and to evaporate all volatiles.

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