1.In flat areas, water is pumped out of the ground.
Identify prepositional phrase then tell is adjective or adverb phrase
1.in flat areas-adverb
of the ground-adverb
1 - OK
2 - "out of the ground" - adverb
http://en.wikipedia.org/wiki/List_of_English_prepositions
Check the list of Multiple Words.
http://grammar.ccc.commnet.edu/grammar/prepositions.htm
To identify the prepositional phrase in the sentence "In flat areas, water is pumped out of the ground," we can look for a group of words starting with a preposition and functioning as a single unit. In this case, the prepositional phrase is "in flat areas."
"Flat" is an adjective modifying the noun "areas," while "of the ground" is another prepositional phrase acting as an adverbial phrase modifying the verb "pumped." So, the correct answer would be:
"In flat areas" - adverbial phrase
"Of the ground" - adverbial phrase