Ascientist a colleague do a better experiment by:

a. providing a warning about a common mistake.
b. filling in an incomplete data table with phony observations.
c. making fun of an awkward presentation of experimental results.
d. to formulate a conclusion without any evidence

A.) providing a warning about a common mistake.

Explanation:

they help their student by recognizing a common mistake, and take action not to do it.

Hope this helped!

~Lunar Rose. Moon

[ answer ]

foliated

[ explanation ]

foliation forms in a rock when pressure squeezes the rock together. the rock then has a design of many different color little lines. there are three types of foliated rock. the types are slate, schist, and gneiss. each type of foliated rock is different based on grain size and foliation characteristics. the lines appear when the rock has been under pressure.

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rain is the best answer