I would say burning a campfire would contribute most to climate change over the others.
C)
The answer is the Phloem. Food=Phloem
Some renewable energy sources are Wind, Solar, and water, these are all better to use then like coal or gas to power houses or cars, there safer to use because they dont produce any harmful chemicals like coal or gas do.
C) when the length of day and the length of night are the same
The answer is <span>2 can be made by the animal's body from other substances.
Both essential and nonessential amino acids have essential roles in the organism. Nonessential amino acids got their name because they are not an essential part of the diet. The main difference between these two groups of amino acid is that essential amino acids cannot be made by the animal's body and must be ingested in the diet unlike the nonessential amino acid which can be made by the animal's body.</span>
