Answer:
a.Brain
Explanation:
Hypothalamus: The hypothalamus is in the lower central part of the brain. It links the endocrine system and nervous system. Nerve cells in the hypothalamus make chemicals that control the release of hormones secreted from the pituitary gland.
Genetic engineering because the genes of the plants were modified
Answer:
65% of oxygen
Explanation:
To name a few: Oxygen-65%, Carbon-18%, Hydrogen-10%
One option for reducing air pollution is to cut back on major producer factories.