Number one is D
Number 2 is b im pretty sure
Carbohydrates is the answer.
Answer: Number 2, aka Solid wastes on land.
Explanation: Bacteria in soil is a natural thing, so it's not polluting the earth. Oxygen in the atmosphere is letting us live, meaning it's not polluting the earth. Fish in rivers is also another natural thing, leaving us with solid wastes on land.
Osmosis is the movement of water and is always the movement in the membrane. Diffusion is the movement of molecules
I wish i knew the answer to this.
