Answer: letter D
Explanation: because if you can see it is real small so it means it is a fringing reef and its the first mountain which leaving x the fludding if you put them in order it would be YZX
Answer:
Solar Energy
Explanation:
The reasoning is most of the energy comes from the Sun to support ecosystems and help them grow, such as various plants.
:')
Organ system is the most complex in organization
