Tag: reduce, recycle, reuse
Questions Related to reduce, recycle, reuse
Which of the following human activity can maintain the biological equilibrium?
-
Poaching endangered animals
-
Recycling of paper
-
Deforestation
-
None of the above
Recycling is the process by which the product is recycled and made available to use again. The recycling of paper not only saves valuable space in our landfills, but it also helps reduce greenhouse gas emissions and when one recycle, one also have to use fewer resources like water and energy to turn that item into another usable item. If the paper is recycled, fewer trees will be cut down for paper pulp. This will help to maintain the biological equilibrium in the ecosystem.
Carbon chloride is used in
-
Bleaching of new paper
-
Bleaching of recycled paper
-
Bleaching of clothes
-
None of the above
The process of conversion of paper material into the slurry substance is called as
-
Sorting
-
Shredding
-
Pulping
-
None of the above
The process of waste paper recycling involves mixing of used paper with water and chemicals to break it down. It is then chopped up and heated, which breaks down the paper further into strands of cellulose, a type of organic plant material. This resulting mixture is called as pulp or slurry. This process is called as pulping.
Recycling 1 ton of paper saves
-
7000 gallons of water
-
17 trees
-
Both A and B
-
none of the above
During the production of paper from the wood pulp, about 7000 gallons of water is used. If the paper is recycled, then this large amount of water can be saved. Studies have proven that one ton of paper is equivalent to seventeen fully grown trees. The paper is made from wood pulp. The trees are cut down for making paper. By saving and recycling of the paper, we can help to prevent deforestation.
The common bleaching agent of recycled paper is
-
Hydrogen peroxide
-
Sodium hydrosulfite
-
Chlorine
-
Both A and B
During paper recycling, .......... is used to bleach pulp.
-
Bleaching powder
-
Hydrogen peroxide
-
Water
-
None of the above
Paper recycling is a process wherein, the paper that is used, discarded by the consumer, is collected and transported to paper mills. The papers are mixed with water and chemicals, broken down, converted into paper pulp and transformed into reusable form. The pulp is colored and bleaching is performed to remove the color. The chemicals which are used for bleaching are hydrogen peroxide, sodium hydrosulfite or sodium dithionite. These chemicals help in deinking of the pulp and increasing brightness.
Non-biodegradable pollutants are created by
-
Nature
-
Excessive use of resources
-
Humans
-
Natural disasters
Non-biodegradable pollutants refer to toxic pollutants that are not degraded or decomposed naturally into less harmful compounds. Humans are the primary source of producing non-biodegradable pollutants. These pollutants include heavy metals such as arsenic, mercury and lead, polythene, synthetic fibres and DDT (dichloro-diphenyl-trichloroethane).
Plastic is one of the most harmful .......... waste.
-
Biodegradable
-
Non biodegradable
-
Biotic
-
Abiotic
The substance which can be easily decomposed by natural decomposers is called as biodegradable wastes such as humans and animal excreta, plant wastes. Whereas the substance that cannot be decomposed by the natural decomposers and harm the environment is called as non biodegradable such as plastics, nuclear wastes or radioactive wastes, chemical wastes like DDT. Abiotic is the nonliving component of the ecosystem which consists air, water sunlight etc. Biotic is the component of an ecosystem which consists all living things like animals and plants. Thus, the correct answer is option B.
Which one is non-biodegradable?
-
DDT
-
Sewage
-
Livestock waste
-
Market garbage
All materials are not recycled in the environment.
-
True
-
False
-
Either
-
Neither