I would say that the resource you could use to find the meaning of <em>ambiguous </em>is the dictionary.
An almanac is an annual publication about weather, crops, etc.
A thesaurus is a dictionary of synonyms.
An encyclopedia is self-explanatory.
B) the force of gravity causes mass wasting to occur is the answer
Answer:
It brings its characteristics to the region. This may change the areas temperature and humidity.