Crystalline silica is a natural compound in the earth's crust and is a basic component of sand and granite. Silicosis is an incurable disease of the lungs caused by breathing crystalline silica dust. This dust can cause scar tissue to form in the lungs.
Elaborate more if u need an answer
Its definitely not A, nor is it D because food webs and food chains can be either land or aquatic animals. i think its B because a food chain goes up and a food web includes more organisms
Algae will be overgrown and larger fish will begin to die out as the carrying capacity has lowered due to a limit in food.
What molecule??
I'm assuming the answer would be by diffusion.
