Why is the life expectancy of kelp forests “unpredictable”, according to the article? What factors might cause a kelp forest to disappear?

Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

Every time there is a full moon, mrs. cook insists that students in her classes display strange behavior. what would be the best way for her to prove the validity of her theory? a. keep a journal of student behavior during different phases of the moon cycle b. research data to find concrete evidence of a link between the moon cycle and human behavior c. ask students to keep a journal of how they are feeling during different phases of the moon cycle d. survey other teachers in the building to see if they notice similar behaviors during the full moon