Answer:
<em>The correct option is D) Hydrosphere</em>
Explanation:
The corals present int he hydrosphere interact with the algae through a endosymbiotic relationship. This endosymbiotic relationship helps to maintain the health of the corals and the reefs. However, at a certain time, the coral reefs might expel the algae living inside it. This phenomenon is termed as coral bleaching. The corals generally expel the algae when they are under stress situations such as changes in temperature or availability of nutrients.
Answer:
A
Explanation: Solid's particles are compacted together so C would be ice, water is not is compact as ice is so water would be B, and lasty gas is well gas so it moves around freely which means the gases particles aren't as compact as water and ice, so gas would be A
The answer would be a galvanic cell
