What is an hypothesis? 1.
an explanation why or how an event happens
2.
an experiment to prove a theory
3.
a fact supported by experimental data
4.
a demgn for an experiment

it should be 1. an explanation why or how an event happens

Explanation:

When you form a hypothesis, you are forming what you think will happen if you do this. then an experiment is usually followed shortly afterwards.

which are post-impressionist paintings? check all that apply?

explanation:

post-impressionism is a predominantly french art movement that developed roughly between 1886 and 1905, from the last impressionist exhibition to the birth of fauvism. post-impressionism emerged as a reaction against impressionists' concern for the naturalistic depiction of light and color.

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