Maybe try zooming in a little more :)
Answer:
Hormones
Explanation:
Hormones. Other possible causes of mood swings may stem from an imbalance of the brain chemicals that are associated with mood regulation, as in the case of bipolar disorder. However, a person's risk for depression is increased during these times as well, so mood swings can also be a sign of a mental health condition.
The definition of a sustainable environment is an <span>environment that can simultaneously meet the needs of the ones living in the environment without damaging it. Therefore, B would be incorrect because there is no concern for the environment's safety. C would also not make sense because it implies that there will be damage to the environment. D also does not make sense because there is nothing concerning the equilibrium between those who exist in the environment and the environment. Therefore A should be your best answer by choice.</span>
Answer:
D
Explanation:
Because it can be removed and the sentence meaning is kept the same
