The largest estuary in the United States is the Chesapeake Bay, which extends through six states. The Bay is one of the most productive natural areas in the world. It is home to thousands of plants and animals, including many commercially important species. The water of the Bay is relatively shallow. Many areas are no more than 10 feet deep, with an average depth of 30 feet. Light penetrates the shallow water and supports submerged plants that provide food and shelter for the many species living in the bay ecosystem. However, like many estuaries, the Bay receives large amounts of fertilizer runoff from farms, lawns, and wastewater treatment facilities. The marshland area around the Bay that reduces flooding is a
a. temperate grassland.
b. wetland.
c. temperate forest.
d. tropical forest.

The Chesapeake Bay is the largest estuary in the United States and is one of the most productive bodies of water in the world. The Chesapeake watershed spans 64,000 squares miles , covering parts of six states — Delaware, Maryland, New York, Pennsylvania, Virginia, West Virginia, and the District of Columbia. hope this helps !!:)

Explanation:

the form of energy changes and the total energy increases0l

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.