Which sphere does an astronomer most directly study

Most of the carbon on earth is stored in the form of

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees

What does the formula below represent? co2 + h20 → c6h1206 +02 a: photosynthesis b: ionization of glucose c: hydrolysis of carbohydrates d: dehydration