Which of the following elements products no harmful emission when used as an energy source

Scientists believe that differences in cause hot, plastic-like rock in the asthenosphere to rise toward earth's surface. a. density c. weight b. magnetism d. composition c. conduction. d. density.

What is likely to happen in the long term if the earth continues to absorb more energy than it emits? a. the earth will discontinue recycling energy. b. organisms will begin to compensate for the change by incorporating more energy. c. the overall temperature of the earth will increase. d. the nutrient cycles will happen more frequently. select the best answer from the choices provided a b c d

Which force of change to earth is caused by the movement of tectonic plates? a.erosion b.pollution c.earthquake d.wind i need and it’s 35 points so can someone plz me