Which of the following groups contain only biodegradable items?
(i) Grass, flowers and leather (ii) Grass, wood and plastic
(iii) Fruit-peels, cake and lime-juice (iv) Cake, wood and grass.
Substances that are broken down into simpler substances by biological processes are said to be biodegradable. Examples, wood, paper. Substances that cannot be broken down into simpler ones by biological...
Some substances which are degraded and broken down into simpler substances by the microorganisms, are called biodegradable substances. For example: Cotton, wood, paper, wool, etc. Substance (mainly man-made) that do...
Detergents that can be degraded by bacteria are called biodegradable detergents. Such
detergents have straight hydrocarbon chains. For example: sodium lauryl sulphate
Detergents that cannot be degraded by bacteria are called non-biodegradable...
The waste materials that we generate in our daily life are either biodegradable and nonbiodegradable. In our environment, microorganisms such as bacteria and fungi secrete enzymes to degrade substances. Organic...
Biodegradable and non-biodegradable wastes should be discarded in two separate dustbins so that the time and energy required in segregation may be saved and waste may be disposed off quickly.
Biodegradable wastes
Non-biodegradable wastes
Waste materials which can be broken down into harmless substance in nature in due course of time by the action of microorganisms such as certain bacteria are called...
(i) Saves time/ energy in segregation
(ii) Biodegradable items can be directly sent for composting
iii) Non–biodegradable items can be sent for appropriate reuse/ recycle
Biodegradable wastes
Non-biodegradable wastes
Waste materials which can be broken down into harmless substance in nature in due course of time by the action of microorganisms such as certain bacteria are called biodegradable...
