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.

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe

Draw the lewis dot structure for each of the following polyatomic ions

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device