Please answer quickly Which property of argon makes it useful for potassium-argon dating?

It decays into potassium.

It is an unstable element.

It remains trapped in rock.

It is useful only for dating newer rock.

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.

Science which of the following is an example of a cyclic behavior that is seasonal? i think the answer is d, i just need to double check : ). a. running from predators. b. searching for water. c. hunting at night. d. migrating for warmth. ***