What is the charge on a hydroxide ion

Which group’s rights—human participants or nonhuman animals—are the most important to protect? why? not really a right or wrong answer, but give a detailed explanation

If you observe an object in the universe that is roughly 8 megaparsecs in size, what is the object most likely to be? a. elliptical galaxy b. irregular galaxy c. ultra-compact dwarf galaxy d. galaxy group e. galaxy cluster

Terrence would like to reward himself after each goal he sets, but he's not sure what type of reward to choose. he's easily distracted and finds it hard to concentrate at times. which would be the best type of reward for terrence? a. a brief social network break b. a long nap c. a snack while he keeps studying d. watching a couple of tv shows