Environmental Chemistry

1. Leather tanneries waste

a) 70.8
b) Environment
c) Chromium (VI)
d) Hepatitis

2. Percentage of water in oceans

a) 71.10
b) 70.8
c) 71.8
d) 70.10

3. Livestock waste

a) Hepatitis
b) Chromium (VI)
c) 21
d) Environment

4. Depolymerization

a) Biological oxidation
b) Recycling
c) Methane
d) 4-8ppm

5. DO

a) Methane
b) HOCl
c) 4-8ppm
d) Recycling

6. Chlorination

a) Biological oxidation
b) Recycling
c) HOCl
d) Methane

7. BOD

a) 4-8ppm
b) Recycling
c) Methane
d) Biological oxidation

8. Landfill

a) HOCl
b) Recycling
c) Biological oxidation
d) Methane

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