Which of the following is not an advantage of hydroelectric power?
a. it is clean, safe, and efficient.

b. it does not contribute to air pollution.

c. only certain locations are suitable for building a dam.

d. water is naturally renewed by the water cycle.

  C is the correct answer, only certain locations are suitable for building a dam.

Explanation:

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation: