J. o.i. n.t. h.i. s.co. d.e.
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Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

Wind and moving water provide energy. chemical mechanical thermal none of the above