Bias is characterized as the number one problem of scientific research design because it introduces subjectivity into the experiment.
True
False

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves