How has human use of salt marshes changed over time?
a. humans have come to value salt marshes and now seek to preserve and restore them.
b. humans now use drained salt marshes exclusively for agriculture.
c. humans have begun to use salt marshes for landfills.
d. humans have begun to use marsh land for housing and commercial development.

The salt marshes are the wetlands present in the coastal regions, they store the water arising from the floods and the tides in the seas. These marshes have a high ecological importance, and they also help in detoxifying wastes bought by the tides. Many marine organism live and come for the reproduction purposes in these marshes.

Earlier, the importance of the salt mashes  were ignored earlier, but later, humans realised and started protecting them.

hence, the correct answer is option a. Humans have come to value salt marshes and now seek to preserve and restore them.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.