Which contributes to the lack of evidence of the period of heavy bombardment on earth?

The given question is incomplete as the options are missing. The options are as follows-

(A) Earths vegetation

(B) The supply of oxygen

(C) Choice text

(D) Plate movements

Option (D)

Explanation:

The period of heavy bombardment is commonly identified as the event of Late Heavy Bombardment, and it has taken place on earth about 4.1 to 3.8 billion years back. There was constant asteroid impact on the earth, that gave rise to the formation of the initial crust. During this time, the asteroid carried a lot of water into the earth, which were later vaporized and lead to the creation of the earth's atmosphere.

The evidence regarding the Late Heavy Bombardment on earth was eradicated due to the constant plate tectonic movement, which is responsible for the destruction and the formation of crust. This has been taking place since the formation of the earth.

Therefore, the plate tectonic activity has removed this evidences of past bombardment events.

Thus, the correct answer is option (D).