Answer:
The three main cycles of an ecosystem are the water cycle, the carbon cycle and the nitrogen cycle. These three cycles working in balance are responsible for carrying away waste materials and replenishing the ecosystem with the nutrients necessary to sustain life.
Explanation:
None needed.
*Sigh* It's important because conserving energy helps the environment and lets you have a little more pocket money when the bills come around.
Answer:
The answer is the first option.
Explanation:
Farming emerged because being a nomad was no longer suitable for increasing population size. Farming allowed people to stay in one place and properly feed their families, which was a definite positive impact on population size.
Methane the most, small amount of oxygen and other gases
Answer: D
explanation: it’s proven that photosynthesis creates the energy for the plant and cellular respiration utilizes it.
hope this helps!
