In the morning, rafael notices that the sun appears on one side of the sky. in the evening, he notices that the sun appears to be on the other side of the sky. however, in class, rafael learned that the sun does not actually move across the sky from one side to another. why does it appear that the sun starts the day on one side of the sky and ends the day on the other? a. the earth spins. b. the sun is not real. c. the sun spins. d. the earth has two suns.

All eukaryotic cells contain small bodies called

2. which is the last step in the scientific method?

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit