3. Following are true about the heat that drives the different system necessary to support life on earth except. a. heat comes from two sources from earth and from the sun b. heat coming from the earth is caused by the radiogenic heat c. heat from the sun trapped by the atmosphere d. heat comes from the energy exerted by conversion of energy 4. earth's rotation is the amount of time that it takes to turn around once on its axis. which of the following is the correct definition of axis? a. it is an imaginary line about which a body rotates b. it is a circular path which a body revolves c. it is a curved path along which something moves through space d. none of the above 5. What characteristics does the earth have to maintain an organism's body to survive? a. it has a water cycle and atmosphere b. it has volcanic activities to circulate nutrients c. it has subsurface water or molten rock that can circulate and replenish nutrients for organism d. all of the above 6. which must be provided for an organism to survive m a. most likely crawled more slowly than earth b. unlike earth there are ice on the polar caps of mars c. mice are larger isolated shield volcanoes than earth d. unlike earth liquid water has not yet been detected on mars​