Venus may have been more Earth-like in the past because
A) it was rotating more rapidly
B) the Sun was dimmer, emitting less solar radiation
C) it was not as close to the Sun
D) its atmosphere was thinner

Question

Quizplus · Accepted Answer

In the past, the Sun was dimmer and emitted less solar radiation, which could have allowed Venus to have a more Earth-like climate before the runaway greenhouse effect took over.

Venus May Have Been More Earth-Like in the Past Because