Color is not a property of populations.
Answer: Energy is what makes change happen and can be transferred form one object to another. Power is the rate at which energy is transferred.
Answer:
I would say B
Explanation:
this is becuase in order for it to be a compund it would need more than one type of atom. hope this helps :)
Carbon Dioxide (CO2) because it is essential to cellular processes that allow plants to thrive and generate oxygen that we can breathe. Nitrogen could also be an example of one gas that's important.