Question

give any two ways for each in which biodegradable and non biodegradable​

Answer 1

Biodegradable Substances :

• The substances which can be disposed of naturally by the action of microorganisms like bacteria ,fungi etc are called biodegradable substances.

• This organism secrete enzyme which causes breakdown of biodegradable substances into simple forms .

• Biodegradable waste can also be put to treatment by waste management plants .

• They can be used as manure compost to increase soil fertility
• Example - garbage, sewage ,livestock waste , used tea leaves, waste papers, leftover food articles etc.

Effects of biodegradable substances :

They act as pollutants only when their quantity becomes large .

• Decomposition of biodegradable waste lead to foul smell .

• Dumping of Industrial waste reduces the fertility of the soil and leads to reduction in crop yields.

• Breeding of flies in use quantity of these waste carries germs and spread diseases .

• Dumping of waste into water bodies leads to water pollution. This results in spread of various water borne diseases .

Non Biodegradable substances :

• The substances that can't be covered into harmless simpler forms by action of microorganisms are called non-biodegradable substances.

• These are toxic , harmful maybe in earth and accumulate in the environment .

• This account of the major pollutants of the environment.

• Most non biodegradable waste result from human activities
• Example - radioactive waste, plastic, insecticides, heavy metals such as lead, arsenic, aluminium etc .

Effects of Non Biodegradable substances:

• Substances like radioactive waste lead Mercury it is accumulated in the environment and causes life threatening diseases in humans and other living beings

• They pollute water and harm the aquatic plants and animals .