Answer is 3 it uses chemical and physical changes when using stomach acid and physical when turning food in your stomach.
Answer:
Excess nitrogen can cause over-stimulation of growth of aquatic plants and algae. Excessive growth of these organisms, in turn, can clog water intakes, use up dissolved oxygen as they decompose, and block light to deeper waters. So few organisms live in these conditions or even can suffocate and die.
The warm water sinks and travels to areas where the water is cold then rises again. The cycle repeats.
Answer:
A sideline is an activity done in addition to one's main job, especially to earn extra income.
Lorenzini ampoule is a special sensing organ. They are mostly found in cartilaginous fish
Explanation:
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