Sedimentary rocks found high in the himalayan mountains contain fossils of clams, sea snails, and other ocean life forms. what does this tell us about the himalayan mountains?

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.