This heat map shows the water temperature in a tank. The red, orange, and yellow sections represent warm water, while cold areas are represented by blue and purple. Write a brief paragraph that includes a description of what is happening in the tank as well as an explanation of how the water in this tank demonstrates how energy flows in the hydrosphere.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.