Explain why both wind power and hydroelectric power can also be considered to be forms of solar energy.

  the mississippians were considered to be  horticulturalists, which means they were

Which of the following units is not an official si unit? mole liter kilogram ampere

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 ?