Answer:
Humans produce too much carbon dioxide, and because of the chemical composition of water, more specifically, the water in the ocean, it is inclined to absorb it, thus making it acidic. Furthermore, human waste contributes to the acidity of the oceans.
I believe it does not have lines of symmetry because of it being a three dimensional pyramid
Answer:D
Explanation: the use of genetic modification to avoid using pesticides
The river that makes up most of Texas's Southern border is the Rio Grande river.