Question:
In one of the steps of the carbon cycle, a person exhales a molecule of carbon dioxide (CO2) into the atmosphere. Which of the following is most likely to happen next to the atom of carbon in this molecule?
Answer:
It may be used as part of a sugar in a plant.
Question:
Which type of energy in gasoline is transformed into mechanical energy in a motorcycle engine?
Answer:
chemical
Question:
One important difference between living things and nonliving things is that only living things have
Answer:
cells
Question:
The length of a year is equivalent to the time it takes for one
Answer:

revolution of Earth around the Sun