Choose from the following the requirements for an electric current.

an insulating material through which to travel
a conduction path
a source of energy
cold temperatures

I think the answer would a source of energy which would be answer C

weathering is the answer.

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a