Answer:It would be all of them
Explanation: Because they all give ideas on how "could a school reduce its use of energy resources
I think it’s D vacuoles, I’m not certain but it don’t hurt to try if it’s not that try A
Answer: it attempts to to stabilize the river by creating a state of equilibrium
Explanation: Sediment transport occurs in natural systems where the particles are clastic rocks (sand, gravel, boulders, etc.), mud, or clay; the fluid is air, water, or ice; and the force of gravity acts to move the particles along the sloping surface on which they are resting.
I think it’s the phenotypes
This is called the Green house effect