What are they for? Key: 1.C 2. a 3. b 4e 5. f 6.d If you want to learn more Key:a.2,3,4,5,6,10 b.17.8.9What are they for? Key: 1.c 2.a 3.b 4.e 5.f 6.d If you want to learn more Key: a. 2, 3, 4, 5, 6, 10 b. 1,7,8,9