Which choice confirms that one air mass is being replaced by another air mass in a given area?

A. increase in wind
B. high air pressure
C. high air temperature
D. it is impossible to tell.

Is a chemical message sent by another individual.

In science class richard learns that a substance has a boiling point of 230 fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of his substance in degrees celsius

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water