Question

Which of the following provides evidence that geologic activity occurred in the past on Earth's Moon?

a) the revolution of the Moon around the Earth
b) the axial tilt of the Moon
c) the phases of the Moon
d) the presence of solidified lava flows on the Moon

Answer 1

Answer:D. the presence of solidified lava flows on the Moon

Explanation:Over time, a significant amount of geological activity, such as plate tectonics, the rock cycle, and erosion, has occurred on the Earth and continues to occur today. There is evidence, however, that some geological activity once occurred on other planets or moons as well.

The presence of solidified lava flows on Earth's Moon, for example, provides evidence that geologic activity in the form of volcanic eruptions occurred in the past on the Moon.

Answer 2

Answer: d) the presence of solidified lava flows on the Moon

Explanation:

A geological activity means an occurrence of event such as volcanic eruption, earthquake, sedimentation, erosion etc. The revolution of the Moon around the Earth , the axial tilt of the Moon or the phases of the Moon are not surface features. hence, these events cannot provide the evidence of geological activity in the past of Moon.

The surface features of moon such as Mares, Craters, mountains, Rays and rills are the proof of some geological activity on the Moon. Mares are the dark patches on the moon's surface formed of solidified lava. Due to negligible atmosphere on the moon, the meteors strike its surface and cause craters to form. Thus, the correct answer is d.