EVERYDAY SCIENCE

Detailed explanation-1: -Barrier islands are long, narrow deposits of sediment that run parallel to shore but are separated from the mainland by a calm, protected body of water called a bay or lagoon.

Detailed explanation-2: -Barrier islands are low strips of sand parallel to the shore, usually with broad salt marshes and estuaries behind them.

Detailed explanation-3: -A fjord is a long, deep, narrow body of water that reaches far inland. Fjords are often set in a U-shaped valley with steep walls of rock on either side. Fjords are found mainly in Norway, Chile, New Zealand, Canada, Greenland, and the U.S. state of Alaska.

Detailed explanation-4: -Lakes. As with oceans, the benthic zone is the floor of the lake, composed of accumulated sunken organic matter. The littoral zone is the zone bordering the shore; light penetrates easily and aquatic plants thrive.

Detailed explanation-5: -The benthic zone is nutrient rich because of the sand, silt, and dead organisms that comprise the bottom of the region; as water depth increases, temperature within this deepwater region decreases.