Chemistry, 04.02.2021 05:00, murtaghliam1
Which type of absolute dating method would be best for a rock layer believed to be millions of years old?
Answers: 1
Chemistry, 21.06.2019 18:30, Thomas7785
Two things that biomedical has invented or innovated
Answers: 1
Chemistry, 23.06.2019 10:00, jdmXdude3140
How to draw a diagram to represent a calcium metal lattice?
Answers: 3
Chemistry, 23.06.2019 11:20, bobthebattlebot
The chemical composition of soil varies with depth. an article in communications in soil science and plant analysis describes chemical analyses of soil taken from a farm in western australia. fifty specimens were each taken at depths 50 and 250 cm. at a depth of 50 cm, the average no3 concentration (in mg/l) was 88.5 with a standard deviation of 49.4. at a depth of 250 cm, the average concentration was 110.6 with a standard deviation of 51.5. find a 95% confidence interval for the difference in no3 concentrations at the two depths.
Answers: 1
Which type of absolute dating method would be best for a rock layer believed to be millions of years...
English, 17.07.2019 05:30
Mathematics, 17.07.2019 05:30