Which statement is false regarding the characteristics of a scientific experiment? Dependent variables are those that can be changed directly by the experimenter. The experimenter should measure at least five data points in an experiment. The scientific process involves observation, hypothesizing, and experimentation. It is important to change only one variable at a time in an experiment.

the answer would be   dignified - apex

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

a. carbon monoxide from car exhaust

b.particulate matter, such as soot

c.water vapor from a factory smokestack

d.acid rain

these are the answer choices im on that question right now