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Quiz Maker › Create Quiz › Online Quizzes › Science › Environmental Science

A Trivia Quiz On Environmental Issues!

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| By Tanmay Shankar

T

Tanmay Shankar

Community Contributor

Quizzes Created: 484 | Total Attempts: 1,798,076

Questions: 15 | Attempts: 1,411 | Updated: Mar 22, 2023

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A Trivia Quiz On Environmental Issues! - Quiz

.

Questions and Answers

1.

The air pollutant is:
- A.
- B.
  
  CO
- C.
- D.
Correct Answer
B. CO

Explanation
CO stands for carbon monoxide, which is a colorless and odorless gas. It is produced by the incomplete combustion of carbon-containing fuels such as gasoline, coal, and natural gas. Carbon monoxide is a harmful air pollutant as it can bind to hemoglobin in the blood, reducing its ability to carry oxygen to the body's organs and tissues. This can lead to symptoms such as headaches, dizziness, and even death in high concentrations. Therefore, CO is considered a dangerous air pollutant that needs to be monitored and controlled.

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2.

PAN is a result of the pollutant:
- A.
- B.
  
  CO
- C.
- D.
  
  All of these
Correct Answer
A.

Explanation
PAN (peroxyacetyl nitrate) is a result of the pollutant CO (carbon monoxide). CO is one of the primary pollutants emitted from sources such as vehicles and industrial processes. When CO reacts with other pollutants in the atmosphere, such as nitrogen oxides (NOx) and volatile organic compounds (VOCs), it can form PAN. PAN is a secondary pollutant and is a major component of smog. It can cause respiratory problems and eye irritation in humans, as well as damage to plants and crops. Therefore, CO is one of the pollutants that contribute to the formation of PAN.

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3.

BOD is a measure of:
- A.
  
  Air pollution
- B.
  
  Noise pollution
- C.
  
  Soil pollution
- D.
  
  Water pollution.
Correct Answer
D. Water pollution.

Explanation
BOD (Biochemical Oxygen Demand) is a measure of the amount of dissolved oxygen needed by microorganisms to break down organic matter in water. It is used as an indicator of water pollution because high BOD levels indicate the presence of pollutants that can deplete oxygen levels in water bodies, leading to negative impacts on aquatic life. Therefore, the correct answer is water pollution.

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4.

Loss of ozone in the stratosphere will cause:
- A.
  
  Greenhouse effect
- B.
  
  Global warming
- C.
  
  Rise in skin cancer incidence
- D.
  
  Forest fires.
Correct Answer
C. Rise in skin cancer incidence

Explanation
The loss of ozone in the stratosphere leads to an increase in the amount of harmful ultraviolet (UV) radiation reaching the Earth's surface. This increased UV radiation can damage the DNA in skin cells, leading to an increased risk of skin cancer. Therefore, the loss of ozone in the stratosphere is directly linked to a rise in skin cancer incidence.

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5.

The pollutant that reacts with haemoglobin is:
- A.
  
  CO
- B.
- C.
- D.
Correct Answer
A. CO

Explanation
CO (carbon monoxide) is the pollutant that reacts with haemoglobin. When inhaled, CO binds with haemoglobin in red blood cells, forming carboxyhemoglobin. This reduces the oxygen-carrying capacity of the blood, leading to a decreased supply of oxygen to the body's tissues and organs. This can result in symptoms such as headache, dizziness, shortness of breath, and in severe cases, it can be life-threatening. CO is commonly emitted from sources such as vehicle exhaust, industrial processes, and improperly ventilated heating systems.

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6.

The industrial MIC disaster occurred in:
- A.
  
  Pune
- B.
  
  Allahabad
- C.
  
  Bhopal
- D.
  
  Baroda
Correct Answer
C. Bhopal

Explanation
The correct answer is Bhopal. Bhopal is known for the infamous Bhopal gas tragedy, which occurred on the night of December 2-3, 1984. It was one of the world's worst industrial disasters and resulted in the release of a toxic gas called methyl isocyanate (MIC) from a pesticide plant owned by Union Carbide India Limited. The gas leak caused the death of thousands of people and resulted in long-term health problems for many survivors. The Bhopal disaster remains a tragic reminder of the devastating consequences of industrial negligence and inadequate safety measures.

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7.

Acid rain is caused by:
- A.
- B.
- C.
  
  (A) and (B)
- D.
  
  CO
Correct Answer
C. (A) and (B)

Explanation
The correct answer is (A) and (B) because acid rain is caused by the presence of both sulfur dioxide (SO2) and nitrogen oxides (NOx) in the atmosphere. These gases are released from burning fossil fuels, such as coal and oil, as well as from industrial processes and vehicle emissions. When these gases react with water, oxygen, and other chemicals in the atmosphere, they form sulfuric acid and nitric acid, which then fall to the ground as acid rain.

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1
0
8.

One of the following is not a greenhouse gas:
- A.
- B.
- C.
  
  CFCs
- D.
Correct Answer
A.

Explanation
CFCs, or chlorofluorocarbons, are not greenhouse gases. They are synthetic compounds that were commonly used in aerosol propellants, refrigerants, and foam-blowing agents. While they do have an impact on the environment, CFCs are not greenhouse gases because they do not contribute to the greenhouse effect. Instead, they deplete the ozone layer in the Earth's stratosphere, leading to harmful effects such as increased UV radiation reaching the surface.

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9.

Pollution by Fluoride principally affects:
- A.
  
  Brain
- B.
  
  Heart
- C.
  
  Lungs
- D.
  
  Bones
Correct Answer
D. Bones

Explanation
Fluoride pollution primarily affects bones. Excessive exposure to fluoride can lead to a condition called skeletal fluorosis, where fluoride accumulates in the bones and causes them to become weak and brittle. This can result in increased risk of fractures and skeletal deformities. Fluoride primarily targets bones rather than other organs such as the brain, heart, or lungs.

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10.

The nation that contributes most to ozone layer depletion is:
- A.
  
  Germany
- B.
  
  USA
- C.
  
  Japan
- D.
  
  Australia
Correct Answer
B. USA

Explanation
The United States is the nation that contributes most to ozone layer depletion. This is because the country has a high level of industrialization and a large population, leading to higher emissions of ozone-depleting substances such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). The use of these substances in various industries, such as manufacturing and air conditioning, has been a major contributor to ozone depletion. Additionally, the United States has historically been one of the largest consumers of products that contain ozone-depleting substances, further exacerbating the issue.

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11.

The process of eutrophication causes:
- A.
  
  Decrease in dissolved
- B.
  
  Increase in dissolved
- C.
  
  Increase in dissolved
- D.
  
  Decrease in dissolved
Correct Answer
A. Decrease in dissolved

Explanation
The process of eutrophication causes a decrease in dissolved oxygen. This occurs when excessive nutrients, such as nitrogen and phosphorus, enter a body of water, leading to an overgrowth of algae. As the algae die and decompose, bacteria consume the oxygen in the water, resulting in a decrease in dissolved oxygen levels. This can be harmful to aquatic organisms that rely on oxygen to survive, leading to fish kills and other negative impacts on the ecosystem.

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1
0
12.

The largest amount of methane is released from:
- A.
  
  Wheat fields
- B.
  
  Paddy fields
- C.
  
  Orchards
- D.
  
  Beetroot farms
Correct Answer
A. Wheat fields

Explanation
Wheat fields release the largest amount of methane compared to paddy fields, orchards, and beetroot farms. This is because wheat cultivation involves the use of nitrogen-based fertilizers, which can contribute to the production of methane gas. Additionally, the decomposition of organic matter in the soil during wheat cultivation can also release methane. Therefore, wheat fields have a higher potential for methane emissions compared to the other options listed.

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13.

The highest concentration of DDT would be seen in:
- A.
  
  Phytoplanktons
- B.
  
  Fishes
- C.
  
  Crabs
- D.
  
  Aquatic birds like sea gulls
Correct Answer
D. Aquatic birds like sea gulls

Explanation
Aquatic birds like sea gulls would have the highest concentration of DDT because they are at the top of the food chain in aquatic ecosystems. DDT is a persistent pesticide that accumulates in the fatty tissues of organisms. As birds consume smaller organisms that have already been exposed to DDT, the concentration of the pesticide increases in their bodies. This process, known as biomagnification, results in higher levels of DDT in organisms higher up in the food chain, such as aquatic birds like sea gulls.

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14.

Noise becomes highly dangerous at:
- A.
  
  20 dB
- B.
  
  50 dB
- C.
  
  10 dB
- D.
  
  120 dB +
Correct Answer
D. 120 dB +

Explanation
Noise becomes highly dangerous at 120 dB and above. At this level, exposure to noise can cause immediate damage to the ears, leading to permanent hearing loss. Prolonged exposure to high levels of noise can also result in other health issues such as tinnitus, stress, and sleep disturbances. It is important to protect oneself from excessive noise levels to prevent these adverse effects.

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15.

Byssinosis is caused by:
- A.
  
  Cotton dust
- B.
  
  Asbestos
- C.
- D.
  
  Silica
Correct Answer
A. Cotton dust

Explanation
Byssinosis is a respiratory condition that is commonly found in individuals who work in textile industries. It is caused by the inhalation of cotton dust, which contains various particles including endotoxins and other contaminants. When these particles are inhaled, they can cause inflammation and irritation in the airways, leading to symptoms such as coughing, wheezing, and shortness of breath. Exposure to cotton dust over a prolonged period of time can result in the development of chronic byssinosis. Asbestos and silica, although also hazardous substances, are not directly associated with the development of byssinosis.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

Current Version
Mar 22, 2023

Quiz Edited by
ProProfs Editorial Team
Mar 03, 2014

Quiz Created by
Tanmay Shankar

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