The qualitative fit-test protocols consist of three steps. what are these steps? (with references! )

Can someone me choose a broad topic and area of focus i am really doing this as a tally to see which one most people pick ok water pollution global warming endangered species atmosphere for the !

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.

Which outcome is not caused by gravitational forcea. gas and dust come together to form a planet b. planets orbit a star c. two atoms come together to form a molecule d. stars cluster to form a galaxy