Depression is being sad, of course it goes deeper than that, but that's where the major depression comes in. Major depression includes signs of not having motivation, and constantly being sad.
Answer:
yes
Explanation:
its one of the criteria of living that gain happiness
If you consider the contribution of other anti-Aztec tribes and disease, then no. Cortez was merely the match that set fire to a very short fuse
PH is the independent variable and the growth of oysters is the dependent variable