Do you think that's animals should be bred to develop a specific traits

Which type of basaltic lava flow has a fairly smooth

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

What is the measurement of how fast an object moves relative to a reference point?