Age of Sample (billions of years) Based on the sample set of data, which statement correctly identifies a weakness of the sampling technique?

Sample sites were not selected based on a range of crater densities.

Some missions took samples that were known to be of very different ages.

Samples were taken from both dark and bright lunar areas instead of concentrating on one area.

The missions did not sample craters on Earth, where rocks are more easily accessible for radiometric dating.

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.