Yea what that person said
Answer:
D. on the surface, directly above the focus
Normal polarity
Explanation:
Earth's magnetic field used to be twice as strong 1.5 billion years ago as it is today and Earth's temperature other than what the geologists see from the 'normal' pattern. It has been noticed that some volcanic rocks were magnetized in opposite direction to the direction of the local Earth's field. It is clear that the Earth has experienced the normal polarity 1.5 years ago but at that time, the Earth's polarity was poorly understood.
Answer:
find the right answer
Explanation:
if the control group is nit included in the experiment it would be hard to get the right solution(answer).
I think hopefully this helps.
I believe the answer id Cnidaria
