Match the Columns. Column A Column B 1. Bacteria and Fungi (a) Waste paper 2. Garbage (b) Contaminated water 3. Plastics (c) Recyclable waste 4. Typhoid (d) Decomposers 5. Plastic, paper, glass (e) Non-biodegradable

1-(d) Microorganisms like bacteria and fungi are called decomposers because they break down the dead parts of plants and bodies of dead animals and release nutrients from them into the environment. 2-(a) Garbage is anything which is no more used and is thrown away, for example, waste paper. Composting is an aerobic method (meaning that it requires the presence of air) of decomposing organic solid wastes. It can therefore be used to recycle organic material. 3-(e) Plastics are non-biodegradable in nature as they cannot be decomposed by microbes. 4-(b) Typhoid is caused by contaminated water. It is a bacterial infection caused by Salmonella typhi. It spreads through contaminated water and food. Typhoid is caused by contaminated water. Contamination of water is due to many human activities such as disposal of untreated wastewater or industrial effluents, making natural water bodies as a dumping area, washing cattle and domestic animals etc. Jaundice, cholera, diarrhoea, etc are also caused by polluted water. 5-(c) Plastic, paper, and glass are recyclable waste and are disposed off in blue bins. These products can be used again after certain treatment. The common waste materials which have the potential to be reused can be recycled as raw materials, can reduce energy consumption, reduce further pollution of water and landfills; reducing the need for waste disposal. Column A Column B 1. Bacteria and Fungi (d) Decomposers 2. Garbage (a) Waste paper 3. Plastics (e) Non-biodegradable 4. Typhoid (b) Contaminated water 5. Plastic, paper, glass (c) Recyclable waste

E M B I B E

Science Booster>Chapter 17 - Garbage In, Garbage Out>Check Point>Q 6

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Green bins are used for recyclable material.

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Important Questions on Garbage In, Garbage Out

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6th CBSE

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Science Booster>Chapter 17 - Garbage In, Garbage Out>PRACTICE TIME>Q 1

Biodegradable waste does not include

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6th CBSE

IMPORTANT

Science Booster>Chapter 17 - Garbage In, Garbage Out>PRACTICE TIME>Q 2

Which of the following is responsible for the increase in waste generation?

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Science Booster>Chapter 17 - Garbage In, Garbage Out>PRACTICE TIME>Q 3

The disposal of waste through open dumping defaces surroundings by

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Science Booster>Chapter 17 - Garbage In, Garbage Out>PRACTICE TIME>Q 4

Waste that rots by the action of microorganisms is called

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Science Booster>Chapter 17 - Garbage In, Garbage Out>PRACTICE TIME>Q 5

Cellulose-based plastic has been developed by scientists. It is

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Science Booster>Chapter 17 - Garbage In, Garbage Out>PRACTICE TIME>Q 6

Blue bins are used for the collection of

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Science Booster>Chapter 17 - Garbage In, Garbage Out>PRACTICE TIME>Q 7

Food kept in polythene bags gets contaminated due to the mixing of

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Science Booster>Chapter 17 - Garbage In, Garbage Out>PRACTICE TIME>Match the Columns

Match the Columns.

Column A	Column B
1. Bacteria and Fungi	(a) Waste paper
2. Garbage	(b) Contaminated water
3. Plastics	(c) Recyclable waste
4. Typhoid	(d) Decomposers
5. Plastic, paper, glass	(e) Non-biodegradable

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