Garbage in Garbage Out

Garbage in, garbage out Worksheet-1

Multiple-Choice Question:

1. Which of the following is an air pollutant?

(a) Fertilizer         (b) DDT                (c) Aerosol           (d) Sewage

2. Acid rain is due to:

(a) oxides of sulphur                       (b) oil slick

(c) nuclear power plant wastes     (d) combustion of fossil fuels

Garbage in, garbage out Worksheet-2

Multiple-Choice Question:

11. With the immense cutting of trees, amount of oxygen in the atmosphere:

(a) remains same                             (b) increases

(c) decreases                                    (d) Both increases and decreases

Garbage in, garbage out Worksheet-3

Multiple-Choice Question:

21. Biotic environment includes:

(a) Consumers                                 (b) Decomposers

(c) Producers                                   (d) All of these

22. The following are all sources of pollution:

(i) Solid waste     (ii) Pesticides       (iii) Sewage         (iv) Fertilizers