When rocks in the seafloor form, they can contain a record of the strength and direction (polarity) of the Earth's magnetic field. The diagram below shows this data from rocks on both sides of a mid-ocean ridge. chart of magnetic field strength and direction, roughly symmetrical about the mid-ocean ridge Modified from image courtesy of USGS Which statement best interprets this data?

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.