Answer: The outer loop should carry a current of 2.0 A.
The current should flow in the counter-clockwise direction
Explanation: Please see the attachments below
Explanation:
The total resistance used to calculate the total resistance of the two parallel resistor is given by :

Taking reciprocal of the above equation.

We can also write the above equation as :

On simplification of above equation,

or

Hence, proved.
Answer:
the second one Test the rate of decay of specific elements in rock samples.
Agriculture would use fresh water