Can you please answer with explanation?

a) cold, dry

explanation:

continental polar masses are cold and dry air masses because the cold air cannot hold much moisture. as they move into warmer air, they can trigger precipitation.

i think the answer is a, hope this is right, that would be my best guess.

co2reflects heat radiation back to earth buning coal and oil emits co2 globe warms

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray