Explain how the Colorado River formed the Grand Canyon. The Grand Canyon is one of the most breathtaking places in the world. As you look over the rim of the canyon, it is possible to see rock layers that are more than one billion years old! Winding along the canyon floor is the Colorado River.

The Grand Canyon is a large, deep river valley in Northeastern Arizona. The main cause of the erosion that formed the Grand Canyon was water; most scientists agree that it formed when the Colorado River started carving through layers of volcanic rock and sediment between five million and six million years ago.

Explanation:

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

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.

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