Mercury cannot sustain life because it is
too close to the Sun harmful substances dormant state major threat to health too cold has little gravity scarce resources too small
A B C D E F G H
Mercury is close to the Sun, and is extremely hot.
if a planet becomes too close to the Sun then that planet cannot sustain life
Mercury cannot sustain life because it is (A) too close to the Sun (B) harmful substances (C) dormant state (D) major threat to health (E) too cold (F) has little gravity (G) scarce resources (H) too small