How do plastic liners and layers of clay help protect the environment around a landfill

Plastic liners and layers of clay can help prevent toxins from leaking into the surrounding soil and water

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.