figure 12 shows a root tip with cells in different stages of mitosis. The image was magnified 400 x. Explain how a magnification of 400 x can be obtained using the lenses on a light microscope.

Centimeters would be the most accurate tool to measure with

This is the most closely resembles the model. 

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.