Hydrogen and Oxygen. Better known as H2O
Answer:
It will eventually become unsustainable because of factors like food, water, space, etc.
NOUN
the natural coloring matter of animal or plant tissue.
VERB
(pigmented)
color (something) with or as if with pigment.
"pigmented areas such as freckles"
Answer: True
Explanation: DNA is a feature people have, as well as characters. You may look like your mother or father... But your features is what makes you look a certain way.
This may not be much help, but I tried!!!