Quick Question for 10th grade Earth Science.

We are learning about Heat Transfer...I think its number 4 But I am not sure :/

Code:

Which statement best describes the pattern of energy flow in a closed system?

(1) Energy flows out of the system.
(2) Energy flow is a cyclical so that equilibrium is never reached.
(3) Energy flows from energy sinks to energy sources.
(4) Energy flows from energy sources to energy sinks.

 

Yea, #4 is correct.

 

okay, Thanks