HELP Good Citizenship Writing Prompt

Defend or Refute the following statement:

If you obey all laws, you have fulfilled your responsibilities as an American citizen.

Needs to be 250 words and I do not know what to write about

PLEASE HELPPP

What are the theoretical properties of a gas at a temperature of 0 kelvin?

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)

What is the role of lenses in microscopy?