There is no diagram here, so I cannot answer.
Answer:
stack
Explanation:
A stack is a rock in the sea near a coast that is formed by wave erosion.
The answer is D. multiple alleles
Lunar eclipses are more widely visible because Earth casts a much larger shadow on the Moon during a lunar eclipse than the Moon casts on Earth during a solar eclipse.
The correct answer is option Observations can be made from outside the "system".
The study of the plate tectonics allows the observation of the movement of the plate tectonics. These observation can be study to determine the pattern of the movement from outside the plate tectonics system and the event occurring due to plate tectonics can be predicted.
