If you are going from a high gradient to a low gradient it’s passive transport. Think of a hill if you put a rock at the top of that hill it will go down no energy involved. Active transport is going up the hill you must use energy to push that rock up the hill because it’s from a low gradient to the top. Hope this helps
Answer:
The biosphere is that part of the earth where living things thrive and live. It is the portion of the planet that can sustain life. The earth has three other spheres:
Atmosphere
Lithosphere
Hydrospher
Ex: tundras, prairies
Oceans
Explanation:
