Stressful households, more so in households where the parents are fighting or going through a divorce. Adolescents may also be stressed for reasons unrelated to the household. (Normal teenage phases)<span />
the answer is A. because if you look at the answers none of then contributes to being open except A.
Pollution puts a lot of strain on the Earth in general.
Waist dumps do as well.
Answer:
The Continental Army defeated the British to end the war in the South by tiring them out which forced them to retreat in Yorktown, where they were defeated.
Explanation: