What is the max number of atoms that a carbon atom can bond with in an organic compound

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled