Can you add the picture or describe it to me? Right now I'd guess that it's probably bacteria because bacteria breaks it down into ammonium and nitrate, which is taken up by the plants by a process of nitrogen fixation. So, D.
Answer:
hope this helps
Explanation:
This medication is used to treat minor aches and pains of the muscles/joints (such as arthritis, backache, sprains). Menthol is known as a counterirritant. It works by causing the skin to feel cool and then warm. These feelings on the skin distract you from feeling the aches/pains deeper in your muscles and joints.
The answer to this question would be C.
They may have ran out of oxygen, or they may not have been water dwelling snails, as not all are, lack of food, no flow of water into and out of the tank would cause them to run out of oxygen.
