Global temperatures increase, so more permafrost melts, so more methane is released, so global temperatures increase. WHY IS THIS AN EXAMPLE OF A POSITIVE FEEDBACK LOOP?

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

How do you tell if someone actually cares about you? and just say they do?