Might just be D must of them don't seem right to me
<span>(1) Does the pH of water affect the growth of radish plants?
</span><span>(2) pH of the water
</span><span>(1) repeating the experiment several times</span>
Answer: Well, populations never evolved than one human might have gone extinct due to many different viruses and sicknesses but other animals might not be extinct. If populations never grew more then that would be because we could not overpower dome viruses. If we never. If we never evolved animals like a Carrier pigeon would not be dead or extinct today.
A:Incineration I think sorry if I’m wrong
A. The sun
Abiotic means fake or not living. Trees, grass, and people are living, also know as biotic. The sun is not living, it’s just a ball of hot gas, which is not living.