Answer:
The surface layer of the ocean is known as the epipelagic zone and extends from the surface to 200 meters (656 feet). It is also known as the sunlight zone because this is where most of the visible light exists. With the light come heat.
Answer:
b chemical potential energy
Answer;
-All blood types made compatible with each other
Explanation;
-In 1898, it was discovered that inherited differences in people’s red cells were the cause of many of the incompatibilities found with transfusions.
-During World War I, when human blood was needed for transfusions for wounded soldiers, studies began of how to preserve and transport blood and four blood types were identified.