Help:( Match the air mass with its description.

1-Arctic:

2-Maritime Tropical:

3-Maritime polar:

4-Continental:

OPTIONS

1-cold and dry

2-cold and humid

3-extremely cold and dry

4-warm and humid

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.