Read this line from the text: yet across the gulf of space, minds that are to our minds as ours are to those of the beasts that perish, intellects vast and cool and unsympathetic… what idea does the word beasts suggest in this text? the curiosity humans have for the inhabitants of mars the relationship with inhabitants of mars will have humans the strength of the urge to survive with all costs the superiority of humans toward other inhabitants of earth

Well I can answer what the word beast suggests about the text.
I think it is suggests that they don't know much about the people of Mars, the life forms that lived there so they are frightened of them. They know that they are intelligent, or were, but also acknowledge how the planet is nearly impossible to sustain life with all of its water frozen.
Hope that helped, I don't know much about English class in highschool yet so I wasn't sure exactly how to answer the question.