How are girls affected by changes in friendships?
1. girls are only affected by changes in friendships with their one or two closest friends.
2. girls are highly resistant to changes in friendships.
3.girls may be more easily hurt and distraught by frequent changes in friendships. 4.girls are rarely affected by changes in friendships.

answer; i believe the correct answer is ( mediation);

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.

frequency is the answer