Lizard Pushups: Types of questions
"Why do lizards do pushups?"
This is a very broad question, and because of the possible meanings of the word "why," the question could actually be one of two questions:
-- what causes the lizard to perform pushups?
We can break this down even further, into four levels of analysis:
The usual way to answer such questions is to come up with possible answers and then experimentally test the answers.
Before we formulate a more specific question, it would be helpful to
gather a little more information.
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