Which rock sample had the most porosity? a. sand b. gravel c. soil which sample had the least? a. sand b. gravel c. soil how much empty space was there in the medium-sized rock sample? a. sand b. gravel c. soil which sample is the most permeable? a. sand b. gravel c. soil

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

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