Answer:
Well for one photosynthesis gives out oxygen. This makes all animals able to live. So in that way it helps us and the world around us. Without photosynthesis we also could not eat food. No animals could live and no plants ould live. VERY IMPORTANT!
Explanation:
The two basic reaction types are synthesis and decomposition. ... Decomposition reactions are the opposite of synthesis reactions because they take apart larger molecules and/or compounds. The generic equation for a synthesis reaction is A + B à AB, where A and B are the pieces that make up the compound/molecule AB.