KCl is a neutral product because KCl is formed from the acid base reaction of KOH and HCl. KOH is a strong base and HCl is a strong acid and when you put them together, you get a neutral product after a chemical reaction. The acid and the base cancel each other out to cause a neutral product.
The electron transport chain is part of the overall processes of cellular respiration and photosynthesis. The solution is A.
It is the b. food chain and begins with plant, then animals that eat plants, and finally animals that eat other animals.