Environmental Studies · General Awareness

Pollution and Human Impact

2,864 Questions

Pollution involves the introduction of contaminants into natural environments, causing severe human impact. This hub focuses on water pollution, thermal pollution, soil contamination, and diseases like Minamata. It is a highly relevant topic for environmental studies in UPSC exams.

Water pollution sourcesOcean pollutantsHeavy metal contaminationSoil erosion impactsThermal pollution causes

Pollution and Human Impact Questions

Multiple choice

Effect of pollution is first marked on

  1. microorganisms

  2. green vegetation of an area

  3. food crops

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Effect of pollution is first marked on green plants of the area.

Multiple choice

Which of these fits gap 21?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
Pollution is one of the major ______ (21) ______ to the environment.  There are many types of pollution like air pollution, water pollution, soil pollution, noise pollution.  We must ____ (22) ____ towards reducing the pollution.  There are many ways to do this. For example, one can use vehicles and automobiles _____ (23) _____ on eco-friendly fuels.  One can also ____ (24) _____ the use of polythene bags.  One can even use natural manure in place of chemical fertilisers for the crops.

  1. diseases

  2. threats

  3. symptoms

  4. factors
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pollution is one of the major indication if danger to the environment. In other words it is a major threat to the environment.

Multiple choice

In what way does ballast water discharged by ships cause harm to marine environment?

  1. By increasing nutrient concentration

  2. By introducing invasive species

  3. By causing hypoxia

  4. By introducing mercuric compounds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ballast water taken up at sea and released in ports, is a major source of unwanted exotic marine life. The invasive freshwater zebra mussels, native to the Black, Caspian and Azov Seas, were probably transported to the Great Lakes via ballast water from a transoceanic vessel.

Multiple choice writing a paragraph writing english

Which option contains the best topic sentence?

  1. Martin Isle is the most polluted island in the world.

  2. There are many reasons why Martin Isle is now the world's most polluted island.

  3. Martin Isle is an island and it is very polluted.

  4. Pollution has destroyed the island of Martin Isle.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The best topic sentence is Option B. A topic sentence depicts the overall idea of the paragraph in brief and here, in Option B, the idea that various factors have made Martin Isle the most polluted island in the world is made clear very effectively. Options A, C and D are incorrect as they only focus on pollution in the island but do not discuss about the factors promoting pollution in the island.

Multiple choice evs seeds and seeds interdependencies among organisms hunting plant interdependence between plants and animals

Lichens are described as indicators of :

  1. Soil pollution

  2. Air pollution

  3. Water pollution

  4. Agricultural productivity
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Lichen cannot survive in places with air pollution especially $SO _2$, if Lichens inhabit a particular area, it is an indication that the air is no or minimum pollutants
So, the correct answer is 'Air pollution'
Multiple choice geography pollution - preventive measures human activities and environmental degradation human activities and its impact on environment pollution, sources, effects and preventive measures

Chemical companies are responsible for _________________.

  1. air pollution

  2. water pollution

  3. soil pollution

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

Chemical companies are responsible for all the three types of pollution. The smoke released from these companies pollutes the air, also they release their waste in water and thereby pollute the water and the waste they dug up in ground pollutes the soil and makes it barren causing soil pollution.

Multiple choice economics environment pollution environment and pollution for a pollution free nature natural resources- air, water and land

Which of the following is not a cause of pollution?

  1. Afforestation

  2. Wars among nations

  3. Industrialization

  4. Growth of algae in water
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wars among nations and industrialization release lots of harmful gases into the air which cause air pollution. Growth of algae in water causes the dissolved oxygen levels in water to deplete, resulting in death of aquatic animals due to water pollution. Afforestation does not cause pollution directly.

Multiple choice economics environment pollution environment and pollution for a pollution free nature natural resources- air, water and land

Pollution is a change in physical, chemical or biological characters of our land and water that may be:

  1. desirable and harmful to humans

  2. desirable and useful to humans

  3. undesirable and harmful to humans

  4. undesirable and useful to humans
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Environmental pollution is defined as the undesirable change in physical, chemical and biological characteristics of our air, land and water. As a result of over-population, rapid industrializations, and other human activities like agriculture and deforestation etc., the earth became loaded with diverse pollutants that were released as by-products. 

It is undesirable and harmful to humans.

Hence, option C is correct.