The gravitational force between two rolling balls depends on their masses and which other factor?
Answer: C) Their separation "100% sure
Good luck and Have a nice Benevolent Day! :)
Answer:
Cyanobacteria were photosynthetic and slowly changed the earth's atmosphere from CO2 rich to O2 rich. Photosynthetic cyanobacteria evolved by 3.5 billion years ago and greatly modified earth's atmosphere.
About 33 because you are just sitting there playing video games the 33 calories burned are coming from sweat because you are probably sweating from an intense game.
Energy flows from the first tropic level(the producers) to the consumers to decomposers then the cycle begins
