Answer the following questions.
1) What are the sources of garbage?
2) What are the side effects of garbage ? 3) What are 3 'R's?
4) Write two Names of organic garbage? 5) Who helps us to compost organic leaves in vermin compost?
6) How worm’s helps us to protect from pollution?
7) How recycling centre works?
Answers
Answer:
Q1.ans Sources of waste can be broadly classified into four types: Industrial, Commercial, Domestic, and Agricultural.
Industrial Waste. These are the wastes created in factories and industries. ...
Commercial Waste. Commercial wastes are produced in schools, colleges, shops, and offices. ...
Domestic Waste. ...
Agricultural Waste.
Q7.ans At the MRF, all the mixed recycling is sorted and separated into different types of materials by hand or machine (or both) before being sent to manufacturers who make it into new products. ... Once materials have been sorted, recycled materials become valuable commodities in the worldwide market.
Q6.ansAs well as keeping soil healthy, worms can help clean up contaminated land by enhancing 'bioremediation' – the process by which micro-organisms consume and break down environmental pollutants converting them to non-toxic molecules
Q5.ansDuring the process of vermicomposting, the earthworms feed on the organic matter and microbial degradation takes place. As observed in Table 5, the percentage of organic carbon is lower in the vermicompost than in the raw material, indicating that the earthworms accelerated the decomposition of the organic matter.
Q4.ansOrganic waste: kitchen waste, vegetables, flowers, leaves, fruits. Toxic waste: old medicines, paints, chemicals, bulbs, spray cans, fertilizer and pesticide containers, batteries, shoe polish. Recyclable: paper, glass, metals, plastics.
Paper: 10–30 days
Glass bottles: undetermined
Q3.ansThe principle of reducing waste, reusing and recycling resources and products is often called the "3Rs." Reducing means choosing to use things with care to reduce the amount of waste generated. ... Recycling means the use of waste itself as resources.
Q2.ansOverflowing waste causes air pollution and respiratory diseases. One of the outcomes of overflowing garbage is air pollution, which causes various respiratory diseases and other adverse health effects as contaminants are absorbed from lungs into other parts of the body.