Mixtures – two or more substances that are not chemically combined<span> with each other and can be </span>separated<span> by physical means. The substances in a mixture retain their individual properties. Solutions – a special kind of mixture where one substance dissolves in another.</span>
Because gravity is trying to pull it down not up and when it's going down it's going with gravity not against it.
The answer is actually D. The pH of the products can be different from the pH of the reactants. Hope this helps :)
I say C because why would you want a plant to resist something that helps it grow? A, B, and D make sense because those can improve the quality of the plant, but fertilizer can improve plant quality and help it grow. So there is no reason to resist it.
