Try to study more than text and don't let anyone get in your way to meet your goal
Answer:
people may get sick or kill their crops by using water thats from unfilter or unsustainable, they're could sometimes be bad chemicals and bacteria in the water
Extinction is the answer.
Answer: Hetrotypes are organisms (anything that lives) that can make it's own energy without absorbing it from other organisms. Example: Flowers, they get there energy from the sun, not from eating and absorbing other organisms.
Explanation: