Which of the following activities is the largest producer of primary air pollutants in the united states? healthcare transportation electricity production agriculture

Before the can be observed by using a transmission electron microscope, cells are sliced into very thin sections. what disadvantage does this procedure present in the study of cellular parts

What type of competition exsist between two species. turtles and fish

Which of these is most likely to happen if parallax measurements of star distances are taken after a gap of six months? the results would be accurate the results would be inconsistent the results would not be valid the results would not be repeated