हिंदी
तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी विज्ञान कक्षा १२

In the E-waste generated by the Mobile Phones, which among the following metal is most abundant?

Advertisements
Advertisements

प्रश्न

In the E-waste generated by the Mobile Phones, which among the following metal is most abundant?

विकल्प

  • Copper

  • Silver

  • Palladium

  • Gold

MCQ
Advertisements

उत्तर

Copper

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 13: Environmental Issues - Evaluation [पृष्ठ २३५]

APPEARS IN

सामाचीर कलवी Biology (Zoology) [English] Class 12 TN Board
अध्याय 13 Environmental Issues
Evaluation | Q 7. | पृष्ठ २३५
सामाचीर कलवी Biology (Zoology) [English] Class 12 TN Board
अध्याय 12 Environmental Issues
Evaluation | Q 6. | पृष्ठ २१६

संबंधित प्रश्न

Students in a school listened to the news read in the morning assembly that the mountain of garbage in Delhi suddenly exploded and various vehicles got buried under it. Several people were also injured and there was traffic jam all around. In the brain storming session the teacher also discussed this issue and asked the students to find out a solution to the problem of garbage. Finally they arrived at two main points -one is self management of the garbage we produce and the second is to generate less garbage at individual level.

1) Suggest two measures to manage the garbage we produce.

2) As an individual, what can we do to generate the least garbage? Give two points.

3) List two values the teacher instilled in his student in this episode.


What can an individual do to reduce waste at home? 


Define gaseous waste.


Explain the role of government in waste management.


Study the image below and write down three items you have at home in each category of waste.

Biodegradable ______


In schools, waste management rules say that we should separate waste into two categories.


The burning of solid waste in ______ is called incineration.


Give the Solid Waste Management (SWM) rules.


India produces 532 million kilos of solid waste every day.


In a village in Karnataka, people started cultivating crops all around a lake which was always filled with water. They added fertilisers to their field in order to enhance the yield. Soon they discovered that the waterbody was completely covered with green floating plants and fishes started dying in large numbers.

Analyse the situation and give reasons for excessive growth of plants and death of fish in the lake.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×