Answer:
To show the flow of energy through ecosystems, food chains are sometimes drawn as energy pyramids. Each step of the pyramid represents a different trophic level, starting with primary producers at the bottom. The width of each step represents the rate of energy flow through each trophic level.
Explanation:
Active transport because it is moving from a lower concentration to a higher concentration
4,3 of two the between difference the to sent PaulRegards1,2,4Ode3,
I'm pretty sure it's high density as a solid.
C. Condensation and Evaporation are the two ways in which energy is transferred between layers of the atmosphere.