Answer:
if im right should be B..............................
Hey!
The water cycle is driven by solar energy, see solar energy is what makes water evaporate, which needs to happen for precipitation to happen, and precipitation reaches earth in hail, snow, or rain which will run-off into oceans and evaporate or just eventually evaporate.
So, yes, solar.
Cells use passive and active transport to move materials across the cell membrane for the maintenance of a constant internal environment. The process is called homeostasis. Reason why? Well, it's critical for living things to keep up an adjusted interior environment to survive. Homeostasis is not only one but rather an aggregate term to all procedures expected to keep that adjust.
Good luck with your studies, I hope this helps~!
A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms. Healthy ecosystems can better withstand and recover from a variety of disasters.