Answer:
Oxygen can get into the water in several ways: Oxygen from the atmosphere dissolves and mixes into the water's surface. Algae and underwater grasses release oxygen during photosynthesis.
Explanation:
Hope this helps you
A 42 year old man will have less calcium
It goes Sugar, Phosphate, Nitrogen base. So I'm going to say Nitrogen base. Hope this helps
Water molecules would probably be it since they are in water and they are made up of two hydrogen and one oxygen.
