Tundras and deserts have a number of similarities such as their lack of water or how organisms that inhabit them are have special features to survive their extreme weather. Both are nearly unsustainable for human life and have just like the tundra, deserts have freezing temperatures at night.
The answer is most likely 4 but I think you need a table or a marked hygrometer to work this out. You can't really work out humidity by the given temperatures. All you can know for sure is that there is a strong chance of rain because dew point is only 1 degree away. (I think what they want you to do is 29/30 x100)
The religons have changed
The things they are doing
Buildings
Weather
Disasters
Attacks
Problems with gas staions
Schools
Education
9-11
That is for the passed only
Global warming which is not a geological process but something humans have caused
C. tobacco tourism and sugar