Scientists use various methods to determine the age of matter. Which method below would a scientist most likely use to determine the absolute age of a rock layer? 1.Identify the oldest fossilized remains in the rock layer.

2.Measure the magnetic strength of the material in a sample of the rock.

3.Compare the amount of stable daughter elements present with the amount of radioactive parent elements.

4.Compare the composition of the rock sample with other rock samples of known age.

4 Compare the composition of the rock sample with other rock samples of know age

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.