There are different types of observers. Casual observers differ from scientific observer. Seeing and observing are two different things. Not that everybody seeing is actually observing the thing.
A casual observer just sits back and watch for something to happen while a scientific observer comes up with some hypothesis to work on it.
Answer:
The answer should be C
Explanation:
If you look at the the graph, C points to the time period after mammals appeared. Since birds are mammals, they should have appeared after the time that mammals first came to be on Earth.
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Answer:
C- Noting cloudiness occurs when two solutions are mixed.
Explanation:
This doesn't require using numbers; this requires using your senses to determine something, which is qualitative data.
Answer:
40 miles/hour
Explanation:
(80 miles) / (2 hours)= 40 miles/ hour
Answer: Heterotroph
Explanation: Good luck! :D