Why was the Martian meteorite ALH84001 singled out for intense study?
A) it is the only Martian meteorite that has even been discovered
B) the meteorite appeared to be giving off methane gas
C) it is a very young rock originating from the Tharsis region
D) it is a very old rock, dating back from the time when Mars probably had liquid water on its surface

Question

Quizplus · Accepted Answer

ALH84001 was singled out for intense study because it is a very old rock, dating back from the time when Mars probably had liquid water on its surface. This makes it a potential candidate for evidence of past Martian life.

Why Was the Martian Meteorite ALH84001 Singled Out for Intense