It might be 23% because 77% of water covers earth and most of the water is either polluted or salt water.
Answer:
Due to urease activity, bacteria are able to use urea as a sole nitrogen source and produce ammonia, which increases the pH in the proximal environment, causing Ca2+ and CO32- to precipitate as CaCO3.
The correction option is VENTILATE THE AREA.
In order to reduce indoor air pollution, the best thing to do is to ventilate the area. Ventilation involves provision of fresh air into a room in order to flush out and eliminate indoor pollution.
Answer:
A
Explanation:
zygote is the merged gametes of different organisms
The element carbon makes long chains forming, single, double or triple bonds with itself.
