Explanation:
Taking steps to reduce or eliminate pollution from nonpoint sources such as streets and farms will help to maintain the ecological balance. Sewage and run-off of agricultural fertilizer can cause the rapid growth of algae in lakes and streams. The growth of algae blocks sunlight and depletes the oxygen in the water.
The correct answers are:
1. Barrier island;
The barrier islands are island formed from the deposition of sediments, relatively close to the coastline. They are often in a linear shape, parallel to the shore, and being attractive tourist places.
2. Steep and rapidly exposed;
The cliffs are rocky structures that appear on the coastline itself. They are very steep, vertical, or even bent over the water bellow them, and they rise sharply above the water.
3. False;
The coastlines are changing constantly. The reason for that are the weathering and erosion processes, the deposition of sediments, as well as the rise or fall of the sea level.
A special group of chemical substances that are used to treat diseases caused by microbes are called antibiotics.
An antibiotic is a chemical compound that is toxic to other bacteria and is produced by a living thing, usually a bacterium. In a complex environment like soil, organisms undoubtedly use antibiotics to regulate the growth of competing microbes. Soil microorganisms frequently produce antibiotics.
Bacteria and fungi are microorganisms that produce antibiotics that help prevent or treat disease. With the invention of penicillin in 1941, antibiotics gained widespread recognition. Since then, they have fundamentally changed how bacterial infections in humans and other animals are treated.
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