Indicates white fur. This pedigree chart might be used to help a cat breeder produce kitt 1
2
Do
0 C
4
3
5
9
6 7 8
10
ODO
11 12
13 14 15
16
17 18 19

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution