Do you think a colony on Mars should be nearer the northern or southern
polar cap? Explain.

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Which metal exist in liquid state and can be cut with knife ?

How do you lengthen a pattern piece? (family and consumer science, sewing)