Astudent wants to prove that the continents separated before the mountains were formed. which of these would provide the most reliable information about the periods when the two events took place? plant color air quality water quality rock properties

Rock properties would be the best answer.

rock properties

Explanation:

As to prove that the continents were formed before the mountains were formed can be explained by the formation of the rocks and the there properties associated with them. The mountains are thus formed by the dominance of the heavier and the lighter plates and thus that d to there formation on earth due to the deposition of the sediments in the sea and thus the properties of the rock are important for there existence.

There can be more freedom for them