People try to conserve some resources, like fossil fuels, because they are not replaceable. Why can't these resources be replaced

a. by using fur or clothes to trap heat energy near the body

the calvin cycle takes place in the stroma of the chloroplast. carbon dioxide enters the stroma of the chloroplast to combine with the five-carbon compound called ribulose1, 5-biphosphate to form two molecules of a three-carbon compound called 3-phosphoglyceric acid. this reaction is catalyzed by an enzyme called ribulose bi-phosphate carboxylase.