Ascientific theory is:
a. an explanation supported by a very large amount of experimental evidence
b. an explanation that cannot be modified in light of new experimental evidence
c. little more than an educated guess
d. the same as a hypothesis
e. any testable explanation for a question or problem

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.

Energy flows from the producer level to the level. is called

Which sections of the heating curve illustrate this process?