9. a fourth-grader in the united states
does an experiment in her science class.
at the same time, a fourth grader in china
is asleep. why is it daytime in the united
states while it is nighttime in china?
a earth's rotation
® earth’s revolution
© the moon's revolution
a d earth's path as it orbits the sun

1. a tropical dry forest carries out more rapid nutrient cycling

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above