2)What is the downside to having concrete as the second most consumed
resource in the world?

Concrete sucks up a 10th of the worlds industrial water use. It also worsens the problem of silicosis and respiratory disease.

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.