Answer: The river source, river mouth, downstream, upstream, flood plain, main-river, meander, tributary, watershed boundary, and wetlands.
Explanation:
Answer:
The answer is A.
Explanation:
A and C have parts that are not directly said by the atricle. D mentions that it says double, which is not directly related to it too. A is something we can determine is true based on the relationship we know between the ocean and fish.
Hypothesis- introduced evolution before Darwin, two big theories; use or disuse and acquired characteristics
