Which type of behavior does an animal know how to do without have to learn it

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

All motion is caused by force? true or false

What is the value of the standard enthalpy of formation of an element in its most stable form?