What Makes the Earth Different from the Other Worlds That

Question 21
Multiple Choice

What makes the Earth different from the other worlds that might have life in the solar system (and easier to detect from far away) is that only Earth A) has liquid water on it; no other world in our solar system has water B) has temperatures in some places where chemical change is possible C) has a solid surface D) has a biosphere on its surface where photosynthesis can take place E) has the chemical ingredients from which life might begin