SOLUTIONS TO EXERCISES, LESSON 6
1.
e
(para 6-1a)
2.
e
(para 6-2b)
3.
d
(para 6-3a)
4.
c
(para 6-3e(1))
5.
c
(para 6-3b(1))
6.
c
(paras 6-3b, c)
7.
c
(para 6-4b)
8.
b
(para 6-4b)
9.
b
e
(paras 6-5b, c)
10.
(para 6-8c(1); figure 6-6)
11.
(para 6-8c(2); figure 6-7)
12.
Three, sprayed with insecticide. (para 6-9e (2))
13.
1. (paras 6-10, 6-11)
14.
Mound, burn-out. (para 6-12)
15.
Bucket (pail). (para 6-14)
16.
b
Ten. (para 6-14b)
17.
Grease trap. (para 6-17a)
18.
Soakage trench. (para 6-17c)
19.
d
(para 6-22)
20.
b
(para 6-24)
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