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Why is e-waste harmful? Express your opinion about this. - Science and Technology

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Why is e-waste harmful? Express your opinion about this.

संक्षेप में उत्तर

उत्तर

  • E-waste refers to electronic wastes, that include old and discarded electric appliances, such as computers, TVs, refrigerators, cell phones, electronic toys, batteries, etc. Most of the electronic waste is generated in cities, however, due to a faster rate of development and improved lifestyle, small towns and villages are also contributing to e-waste generation.
  • E-wastes is very dangerous and polluting as it contains many harmful substances, such as plastics, lead, cadmium, and mercury. These substances are not just non-biodegradable, but they also result in several life-threatening diseases, including cancer. Many of these harmful metals can enter the food chain and result in bioaccumulation.
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अध्याय 9: Environmental Management - Exercise [पृष्ठ १०७]

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बालभारती Science and Technology [English] 9 Standard Maharashtra State Board
अध्याय 9 Environmental Management
Exercise | Q 3. d. | पृष्ठ १०७

संबंधित प्रश्न

What is meant by incineration? for what purpose is it used?


How are most of the solid wastes in urban areas disposed of?


Multiple Choice Type:

The most convenient reusable wastes are


Match the items in Column I with as many times as possible in Column II.

Column I

Column II

1. Cow dung

(i) Sugarcane

2. Bagasse

(ii) Raddiwalas

3. Old newspapers

(iii) Manure


Mention whether the following statement is true (T) or False (F).

Electricity is one of the primary needs of human society. 


What is waste?

What kind of waste causes viral and bacterial disease transmission?

What does sewage comprise of?

What are the hazardous wastes generated from agricultural wastes?

Give two examples of e-waste.

The question has four options. Choose the correct answer:

Continuous sewage flow into a stream would lead to


Choose the correct option:

The rotting of garbage is said to be completed when the garbage:


What will happen if garbage is left open in bin?


Discuss:

Is it possible to reduce the problems relating to disposal of garbage?


Which of the following is the best way for disposal of vegetable and fruit peels?


To what use can you put the following kind of garbage and how?

rotting smelly garbage


Put a tick (√) against the garbage items given in Table 16.1 which could be converted into manure. Put a cross (×) against the others.

  Garbage Items Make manure or not
(i) Eggshells  
(ii) Straw  
(iii) Dry flowers  
(iv) Pebbles  
(v) Broken pieces of glass  
(vi) Nails and screws  
(vii) Plastic bangles  
(viii) Leftover food  
(ix) Steel broken vessel  
(x) Dead animals  

What happens when

The cooking medium is made to flow down a drain.


What is meant by garbage?


List two classes into which garbage is classified.


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