Which is most likely to cause clouds to form in a previously clear sky?

An air mass sinks and becomes colder.

An air mass sinks and becomes warmer.

A warmer air mass moves into the area and rises.

A colder air mass moves into the area and rises

read my name

Thank me later is right but the last question is wrong it's x not b

1.a continental polar air mass moves into an area.based on characteristics of this type of air mass,wich changes are most likely to happen in the area?

c.the temperature will decrease and humidity will decrease.
2.which type of air mass forms over a cold ocean?
a.maritime polar
3.wich type of air mass is most likely to bring hot,humid weather
c.maritime tropical
4.which is most likely to cause clouds to form in a previously clear sky?
d.a warmer air mass moves into the area and rises.
5. it is b

what the answer

Thank me later is wrong, I got a 3/5. The real answers are, The temperature will decrease and the humidity will decrease, Continental Polar, Maritime Tropical, A warmer mass moves into the area, Maritime Polar

1.The temperature will decrease and humidity will decrease.

2.maritime polar
3.maritime tropical
4.A warmer air mass moves into the area and rises.
5.maritime polar

Thank me later is right on 4

:P

The full right answers are

1.B
2.D
3.A
4.B
5.C
I got 100% on the quick check with these answer :D

Moxie is wrong on The last question the answer for 5. is martime polar

The last answer is A

Maritime polar