Which statement best describes the water cycle: a: a simple circular path that water takes around earth
b: a complex path that water repeats
c: a cycle if processes by which water circulates the earth's oceans , atmosphere , and land.

C. A cycle of processes by which water circulates the earth's oceans, atmosphere, and land.

Explanation:

The term water cycle (also called the hydrologic cycle or the hydrological cycle) refers to the way water moves on, above, and below the surface of the Earth.

As the sun heats up the surface of our planet, water evaporates from it, rises up into the atmosphere, cools, and turns into rain or snow in clouds. Then, in this form, it falls on the surface again. This cycle constantly repeats itself, which means that water moves all the time.

You can see an illustration of this phenomenon in the image attached below:

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.