Ummmm because the gravity pulls it down because of its weight
Just like any ecosystem, a self-sustaining ecosystem needs light for primary production and nutrient cycling. The environment must find an ecological balance and be able to support the survival and reproduction of all organisms living inside it
Answer:
C
Explanation:
The acid in our stomach is made up of potassium chloride, sodium chloride, and hydrochloric acid and is really strong so it can eat through the food we eat faster, and our blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45.
