Q16
5 marksLong AnswerSection A

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. (a) Suggest two measures to manage the garbage we produce. (b) As an individual, what can we do to generate the least garbage? Give two points. (c) List two values the teacher instilled in his students in this episode.

Our Environment
Managing the Garbage we Produce
Official Answer

(a) Two measures to manage the garbage we produce:

  1. Segregation of Waste: Separate biodegradable waste (like kitchen scraps, vegetable peels, and food waste) from non-biodegradable waste (like plastics, glass, and metals) at the source before disposal.
  2. Recycling and Composting: Convert biodegradable waste into nutrient-rich compost using pits, and send recyclable non-biodegradable materials (like paper, glass, and metals) to recycling units.

(b) Two points to generate the least garbage as an individual:

  1. Avoid Single-Use Plastics: Use reusable cloth or jute bags for shopping instead of disposable plastic bags, and avoid disposable plastic cups, plates, and cutlery.
  2. Adopt the 'Reduce' Principle: Buy products with minimal packaging, choose refillable containers, and repair items instead of discarding them.

(c) Two values the teacher instilled in his students:

  1. Environmental Sensitivity and Responsibility: Developing awareness about the hazards of waste accumulation and fostering a sense of duty towards keeping the surroundings clean.
  2. Community Problem-Solving: Encouraging critical thinking, collaborative brainstorming, and taking individual initiative to solve local civic and environmental issues.
SegregationBiodegradableNon-biodegradableCompostingRecyclingReusable bagsReduceEnvironmental consciousnessCivic responsibility

Marking Scheme

  • 1(a) Two measures to manage garbage: 2 marks (1 mark for each correct measure)
  • 2(b) Two points to generate least garbage: 2 marks (1 mark for each correct point)
  • 3(c) Two values instilled by the teacher: 1 mark (0.5 marks for each value)

Hint

For (a), think about separating waste types and composting. For (b), think about replacing disposable items with reusable ones. For (c), think about values like environmental awareness and civic duty.

Quick Oral Answer

To manage garbage, we should segregate biodegradable and non-biodegradable waste at home and compost organic waste. To generate less waste, we should avoid single-use plastics and use reusable cloth bags.

Analysis & Explanation

This question addresses the critical issue of municipal solid waste management.

(a) Waste management starts with segregation because mixing biodegradable and non-biodegradable waste makes treatment difficult. Biodegradable waste can undergo natural decomposition to replenish soil nutrients, while non-biodegradable waste must be recycled or safely disposed of.

(b) Minimizing waste generation at the individual level involves behavioral changes, such as choosing reusable alternatives over disposable items (as highlighted in the NCERT text regarding disposable cups in trains).

(c) The teacher uses a real-life incident to instill civic responsibility and environmental consciousness, showing students that global problems require local, individual actions.

Common Mistakes

  1. 1Suggesting burning of plastic waste as a management measure (which causes air pollution).
  2. 2Confusing waste management (handling produced waste) with waste reduction (generating less waste).

Interesting Facts

In India, millions of disposable clay cups (kulhads) were once proposed for trains, but it was realized that making them on a large scale would destroy fertile topsoil. Today, biodegradable paper cups are preferred.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2018?

This question carries 5 marks in the CBSE Class 10 Science 2018 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Our Environment" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Managing the Garbage we Produce" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2018 paper?

This is a Long Answer question from Section A in the CBSE Class 10 Science 2018 paper.