Answer:
if birth rate become higher than the death rate then the population will increase surely, cuz there are more people who add up to form a population but it's decline rate is lesser.
I'm pretty sure that it's natural gas.
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:
