Is it important to keep a copy of a written plan and safety records off site true false

Which of the following is a type of technology that can be used at a coal-burning power plant to remove both particulate matter and gases? bag filter catalytic converter cyclone electrostatic precipitator scrubber

Briefly explain how one development from the period 1861 to 1865 not directly mentioned un the excerpts supports mcpherson's argument

If pressure and temperature remain constant, will the volume of gas in the respirometers increase or decrease?