Answer:
a
Explanation:
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An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments.
Answer: The answer is option C) two different species on the basis of reproductive behavior
Explanation:
This situation observed in South America is a good example of Sympatric speciation.
Where, two organisms similar in many respects by
- occurring in the same territory, differing ONLY as two different species because they DO NOT interbreed - thus, becoming different species on the basis of reproductive behavior.
So, option C is the answer
Answer:
The best classification of wave mentioned in the question is longitudinal wave.
Explanation:
- If the particle displaces parallel in the direction of wave propagation then it is simply called as the longitudinal wave.
- As mentioned in the question, the particle of rock is vibrating parallel to the wave propagation i.e north south direction not top down so it is shows the nature of longitudinal wave.
- In this wave system particle do not move top down, it only oscillates back forth.
