Select the correct answer.
which term defines a well-tested, scientifically supported statement that explains how something works?
a.
hypothesis
b. law
oc. observation
d. theory

D.

Explanation:

Observation: An observation of how something works not tested

Hypothesis: An observation being tested

Theory: A tested theory

Law: A theory that has been tested over nay years by diffrent people

b. the carbon cycle ensures living things have a source of hydrogen

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