in the Black sea, why is the algae grown around the edges of the sea, rather than spread all over it?
Answers
Explanation:
The ocean, that vast body of water covering 71 percent of the Earth's surface, is divided into four major basins: the Pacific, Atlantic, Indian, and Arctic Oceans. These large basins are interconnected with various shallow seas, such as the Mediterranean Sea, the Gulf of Mexico, and the South China Sea. Oceans and seas abound with life, ranging from microscopic unicellular (one-celled) organisms to multicellular (many-celled) animals.
Algae is an important life form in the ocean. Life in the ocean is maintained in balance by forces of nature and by predator–prey relationships, unless some external pressures upset the balance. When a balance upset leads to conditions more favorable for the reproduction and growth of algae, an explosive increase in the number of algal cell density occurs. Such rapid increases in the algae population are called algal blooms.
During a bloom, a liter of water may contain millions of algae. The most widely publicized type of algal bloom is associated with species that produce a toxin (chemical substance) harmful to animals that feed on the algae (and hence is known as a harmful algal bloom), and/or algae that cause a tint in the water because of the photosynthetic pigments they contain. The latter commonly is known as a "red tide," but different pigments can turn the water red, brown, purple, orange, or yellow. Depending on the circumstances and the species present, a red tide may or may not be harmful. Although not all algal blooms in the ocean produce highly visible effects nor are all blooms harmful, they nonetheless affect life in the ocean and on land in both beneficial and harmful ways.
please mark as brainliest answer and try to follow me
Answer: Because of the external pressure and they need sunliht to survive which is most available near the coastal areas and at the edges.
Explanation: Algae is an important life form in the ocean. Life in the ocean is maintained in balance by forces of nature and by predator-prey relationships unless some external pressures upset the balance. When a balance upset leads to conditions more favorable for the reproduction and growth of algae, an explosive increase in the number of algal cell density occurs. Such rapid increases in the algae population are called algal blooms.
During a bloom, a liter of water may contain millions of algae. The most widely publicized type of algal bloom is associated with species that produce a toxin (chemical substance) harmful to animals that feed on the algae (and hence is known as a harmful algal bloom), and/or algae that cause a tint in the water because of the photosynthetic pigments they contain. The latter commonly is known as a "red tide," but different pigments can turn the water red, brown, purple, orange, or yellow.
#SPJ3