Why is the claim of the discovery of microfossils controversial?
A) they are found in rocks from the Hadean Eon
B) it is not clear whether they are of biological or non-biological origin
C) the rocks they are found in are probably contaminated by terrestrial bacteria
D) they are too small to be of biological origin

Question

Quizplus · Accepted Answer

The main controversy surrounding the discovery of microfossils is whether they are of biological or non-biological origin. Other factors such as contamination and the age of the rocks can also contribute to the debate, but the main argument revolves around the interpretation of the structures themselves.

Why Is the Claim of the Discovery of Microfossils Controversial