Need answer quick ! which of these describes a method in studying plate movements? a. observe the absence of magnetic rocks in locations that do not match the poles b. match relief elements only on the western side of the atlantic ocean c. record the spread of the seafloor in the mid-atlantic region d. correlate the rotation of earth to plate movement

The answer is limited down to C and B

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u