How does energy ultimately leave the biosphere?

The simple interest on a loan of $200 at 10 percent interest per year is $10 per year until the loan is paid off. $15 per year until the loan is paid off. $20 per year until the loan is paid off. $25 per year until the loan is paid off.

What is the fate of the electrons that interact with a specimen in an electron microscope?

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?