What gave rise to Egyptian civilization? Question options:
the downfall of the Kush river civilization
changes in climate
the fertile Nile Valley
the gold and salt trade

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