Tag: water too little to waste

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Questions Related to water too little to waste

Multiple choice chemistry water too little to waste pollution of water water pollution planet earth

Which of the following pollutants cannot be degraded by natural process?

  1. DDT

  2. Nuclear Waste

  3. Heavy Metals

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pollutants which are slowly degradable remain in the environment in an unchanged form for many decades. For example, substances such as dichlorodiphenyltrichloroethane (DDT), plastic materials, heavy metals, many chemicals, and nuclear wastes etc., once released into the environment are difficult to remove. These pollutants cannot be degraded by natural processes and are harmful to living organisms. In the process of environmental pollution, pollutants originate from a source and get transported by air or water or are dumped into the soil by human beings.

Multiple choice chemistry water too little to waste pollution of water water pollution planet earth

Water is becoming scarce due to increase in :

  1. population

  2. industries

  3. agricultural activities

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Water scarcity is a multifaceted issue driven by population growth, industrial expansion, and intensive agricultural practices, all of which increase the demand for limited freshwater resources.

Multiple choice chemistry water too little to waste pollution of water water pollution planet earth

Which of the following industries may be a reason for water scarcity?

  1. Chemical industry

  2. Pharmaceutical industry

  3. Textile industry

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All these industries cause water pollution by the water discharged into the rivers. The common industrial pollutants are sulphur, asbestos, poisonous solvents, poly-chlorinated biphenyl, lead, mercury, volatile organic chemicals, etc.

Multiple choice chemistry water too little to waste pollution of water water pollution planet earth

Pollution of water due to agricultural operations can be minimized by using:

  1. pesticides

  2. fertilizers

  3. all of the above

  4. none of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pesticides and fertilizers containing chemicals causes water pollution. Pesticides contaminate water as the pesticides are toxic. Fertilizers contain nitrogen and phosphorous, high amount of which is injurious to the underwater organisms. Therefore, the answer is D.

Multiple choice chemistry water too little to waste pollution of water water pollution planet earth

Choose the correct statement(s).

  1. Aldrin is used as a pesticide.

  2. The maximum permissible limit of nitrate in water is 50 ppm.

  3. The maximum permissible limit of fluoride is 6 ppm.

  4. All of the above
Reveal answer Fill a bubble to check yourself
A,B Correct answer
Explanation

A) Aldrin is a pesticide used to control soil insects such as termites, corn rootworm, wireworms, rice water weevil and grasshoppers.
B) The maximum permissible limits for nitrite and nitrate are 10 ppm and 50 ppm respectively.
C) The maximum permissible limit of fluoride is 2 ppm.

Multiple choice chemistry water too little to waste pollution of water water pollution planet earth

Water pollution can be classified into chemical and thermal pollution.

Is the above statement correct?

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Water pollution caused due to the chemicals such as the chemical waste from the industries, chemicals used in agriculture such as pesticides, herbicides, etc. All these results in chemical water pollution.

Thermal water pollution is caused by the radioactive wastes that are emitted to the water which results in degradation of the water quality.

Multiple choice chemistry water too little to waste pollution of water water pollution planet earth

Rich in lather, mixed with oil, black-brown water that goes down the drains from ________ is dirty. It is called waste water.

  1. sinks

  2. toilets, showers

  3. laundries

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

These type of waste water causes the water pollution. It usually gives negative impact on our environment and not good for aquatic life.

Multiple choice chemistry water too little to waste pollution of water water pollution planet earth

Water pollution can be defined as:

  1. Physical change in the properties of water

  2. Chemical change in the properties of water

  3. Biological change in the properties of water

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are various chemical pollutants which on mixing changes the colour, taste or other physical quality; changes the natural state of odourless, colourless form by bringing chemical changes and biological changes include an addition of pathogenic bacteria to the water by untreated sewage waste.