Beccaroviachani Beccaroviachani

14-02-2016
Chemistry

contestada

Which of the following is a radioisotope used to date rock formations older than 50,000 years?
a. Carbon-14.
b. Uranium-235.
c. Cobalt-69.
d. Carbon-12.

Respuesta :

BlueDomo BlueDomo

14-02-2016

You use uranium, carbon 14 half life is such that after 50000 years there won't be much left in the sample.

Answer Link

Otras preguntas

Select the graph of the system of linear equations which has the solution (-3, 5).

*PLEASE HURRY ITS FOR A QUIZ* Which of the following have angular momentum? Choose all that apply. A. A stationary Ferris wheel B. The wheels of a bike ridi

which action by the federal government would progressive reformers be most likely to support

In October 2012, one US dollar could buy about _______ Canadian dollars. A. 0.88 B. 0.98 C. 1.08 The exchange rate remained unchanged from ________ A. Oct. 2012

I need help with this!!!!!

Which occupation would be more likely to require emotion work as a job requirement?

what is the meaning of Trait and trite

a scale drawn on the map shows that 1 inch represents 16 miles. if two cities are 3.25 inches apart on the map, what is the distance between them in real life?

which of the following events occurred in 1961?

Public health officials are growing increasingly concerned about zoonotic diseases. a. True b. False