Which fossil fuel releases the least amount of carbon dioxide into the air in a year

How many years would it take the atlantic ocean to grow 500 centimeters? show your work.

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food