Plain is flat and plateau is flat with ridges <span />
I believe the answer would be B. Some states don't collect income tax because every person in every state has to pay their taxes. Hope I helped!
Answer:
<em>Longitudinal study
</em>
Explanation:
A longitudinal study (or longitudinal survey, or panel analysis) <em>is a research design requiring repeated measurements of the same variables</em> (e.g., humans) across short or long periods of time (e.g. using longitudinal data).
Studying the elephants across long periods of time to determine their intelligence.
It is often a form of observational study, although it could also be described as randomized longitudinal experiments.
Answer:
For Blue fill in the dot with the word over top Absorbed.
For Pink fill in the dot with the word overtop Reflected.
Explanation:
Blue is absorbing the waves because it is in the background.
Pink is reflecting and getting absorbed because it is the waves because of the arrows.
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Economic because the u boat attack was trying to keep aid from England during the war