Earth science
can someone help me,10 points for someone who does.

Who was not a famous harlem renaissance artist during the 1920s

Which of the following guidelines should be followed if you have a large spill that is dangerous or beyond your ability to clean up? a) call emergency authorities b) try to keep it quiet so nobody panics c) if the material is flammable, get several buckets of water to dilute it with d) wipe up as much as you can with appropriate rags

Recently, there has been pressure to loosen clean air standards. use economic arguments to support or oppose this proposed action.