Tag: garbage in, garbage out

Questions Related to garbage in, garbage out

Ecological imbalance in the biosphere is created by 

zoology garbage in, garbage out plastic waste thermocol ways to reduce non degradable garbage recycling of paper

  1. Cutting of forests

  2. Conservation of forest

  3. Production of more plastics

  4. Both A and C

Show answer
Correct Option: D
Explanation:

Deforestation means the felling and clearing of forest cover or tree plantations in order to accommodate agricultural, industrial or urban use. It involves permanent end of forest cover to make that land available for residential, commercial or industrial purpose. Deforestation can also be seen as removal of forests leading to several imbalances ecologically and environmentally. Synthetic products are materials that are made by chemical processes that are formed artificially by chemical synthesis such as plastic bags, chairs, toys, etc. These synthetic materials can last for years and cannot be decomposed by decomposers. These synthetic products like different plastic products are made up of plastic; this creation of man hinders the flow of materials in the biosphere. Improper disposal is one of the reasons why synthetic products become of the problems and causes of ecological imbalance. It destroys ecosystem that can kill the organism and at the same time it causes various problems in the living world such as pollution.

Therefore, the correct answer is option D.

What is the best method to avoid pollution by using plastic bags?

zoology garbage in, garbage out plastic waste thermocol ways to reduce non degradable garbage recycling of paper

  1. Bury the plastic bags in the soil

  2. Use biodegradable plastic bags

  3. Throw the plastic bags into the river

  4. Burn the plastic bags in a rubbish dump

Show answer
Correct Option: B
Explanation:

The plastics are the non-biodegradable wastes because they are synthetic polymers which cannot be acted upon by the microbes. The plastics should not be dumped in the soil, river or rubbish dump. The biodegradable plastics should be used which will reduce the pollution and the problems created by the use of plastics. 

Thus, the correct answer is option B. 

Who proved that blends of polyblend (plastic waste) and bitumen, when used to lay roads, enhanced the bitumen's water repellent properties and helped to increase road life?

zoology garbage in, garbage out plastic waste thermocol ways to reduce non degradable garbage recycling of paper

  1. Amrita Devi

  2. Ramdeo Misra

  3. WH Pearsall

  4. Ahmed Khan

  5. Ramesh Chander Dagar

Show answer
Correct Option: D
Explanation:

K. Ahmed Khan is an Indian scientist and businessman who made success in using plastic for road construction. He is the founder of KK Plastic Waste Management Pvt.Ltd.He along with his brother Rasool Khan, stung by protests to ban plastic, hit upon the idea of recycling plastic and mixing it with bitumen to lay roads. Ahmed Khan proved that blends of Polyblend and Bitumen, when used to lay roads enhanced the bitumen's water repellant properties and helped to increase road life by a factor of three.

So the correct answer is 'Ahmed Khan'.

Which of the following groups contains only easily biodegradable items?

evs garbage in, garbage out preparation of compost sewage disposal solid waste management

  1. Grass, flower and leather

  2. Grass, wood and plastic

  3. Fruits, peel cake and lime juice

  4. Cake, wood and grass

Show answer
Correct Option: A,C,D
Explanation:
Biodegradable items can be degraded into simpler molecules by the action of microbes. These include grass, flowers, leather, wood, fruit peels, cake, lime juice etc. All these items can be decomposed by microorganisms.
Plastic is non-biodegradable as it can't be decomposed by the action of microorganisms and thus, it remains in nature for a long period of time.
So, the correct answer is option A, C and D. 

Safai karamcharis collect the garbage in trucks and take it to a low lying open area. This area is called as

evs garbage in, garbage out preparation of compost sewage disposal solid waste management

  1. Dust bin

  2. Garbage

  3. Landfill

  4. Waste

Show answer
Correct Option: C
Explanation:

Safai karamcharis collect the garbage in trucks and take it to a low lying open area, called a landfill.

So, the correct answer is 'landfill'

Which of the following action or activity may causes undesirable effect to our environment?
i)  Catching and keeping animals such as bird and cats at home.
ii) Feeding birds such as pigeon and crows in our neighbourhood.
iii) Burning unwanted plastic product in our neighbourhood o reduce non - biodegradable rubbish.
iv) Dumping biodegradable refuse such as fruit skins and bones in our sewage to make the water nutrients rich for healthy growth of flowering plants.

evs garbage in, garbage out preparation of compost sewage disposal solid waste management

  1. iii and iv only

  2. ii and iv only

  3. ii, iii and daily

  4. i, ii, iii and D

Show answer
Correct Option: A
Explanation:
iii) Burning unwanted plastic product in our neighbourhood or reduce non-biodegradable rubbish.
  • Burning of plastic causes air pollution due to the release of nitrogen oxides, sulphur dioxides and other particulate matter into the atmosphere.
iv) Dumping biodegradable refuse such as fruit skins and bones in our sewage to make the water nutrients rich for healthy growth of flowering plants.
  • The above activity causes an undesirable effect on the environment.
  • So, the correct answer is 'iii and iv only'.

Which of the following is the method of controlled aerobic combustion of wastes inside chambers at temperatures as high as 900$^0$-1300$^0$C?

evs garbage in, garbage out preparation of compost sewage disposal solid waste management

  1. Sludge burning

  2. Pyrolysis

  3. Incineration

  4. Source reduction

Show answer
Correct Option: C
Explanation:

Incineration is the process of oxidation of combustible substance present in the waste (which is heterogeneous material like minerals, metals etc.). The waste is treated to reduce its volume, convert that into useful form of energy. At a temperature of 900 to 1300$^0$ C, the organic substances in the waste will burn and release energy. So, the correct answer is 'Incineration'.

Combustible and non combustible solid waste, excluding food waste, known as

evs garbage in, garbage out preparation of compost sewage disposal solid waste management

  1. Rubbish

  2. Garbage

  3. Solid material

  4. Animal Waste

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Correct Option: A

What is an approximate percentage of dissolved solid in seawater?

evs garbage in, garbage out preparation of compost sewage disposal solid waste management

  1. 4.50%

  2. 3.50%

  3. 1.50%

  4. 2.50%

Show answer
Correct Option: B

Which solid waste disposal method is endothermal process?

evs garbage in, garbage out preparation of compost sewage disposal solid waste management

  1. Compositing

  2. Pulverization

  3. Incineration

  4. Pyrolysis

Show answer
Correct Option: D