🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books

Environment And Human Health Quiz 2 (10 MCQs)

This set of multiple-choice questions evaluates understanding of environmental health, indoor air quality, and the health impacts of buildings, including Sick Building Syndrome. It covers public health measures, environmental toxins, and the effects of environmental factors on human health, such as physical health, mental capacity, and cognitive functions. The questions also address global health issues, climate change, and the impact of environmental hazards on low-income communities.

Quiz Instructions

Select an option to see the correct answer instantly.

1. The city of Surat was affected by ..... in 1994.

Correct Answer: Correct answer is: (C) Plague.

Exam Relevance: UPSC, NEET, GATE, GRE

Difficulty: Moderate

Concept notes: The city of Surat experienced a significant outbreak of plague in 1994, which affected the population and required extensive public health measures to control.

Common Mistakes: A common mistake could be confusing the outbreak with other diseases like malaria or dengue, which are also prevalent in the region.

Explanations: In 1994, Surat faced a major outbreak of plague, a zoonotic disease caused by the bacterium Yersinia pestis. This outbreak led to significant public health concerns and required immediate intervention to prevent further spread. The plague outbreak in Surat highlighted the importance of environmental and public health measures in controlling infectious diseases.

Option Analysis:

Option A: Malaria is a mosquito-borne disease and was not the primary health issue in Surat in 1994.
Option B: Dengue is also a mosquito-borne disease and was not the primary health issue in Surat in 1994.
Option C: Plague is the correct answer as it was the disease that affected Surat in 1994.
Option D: Fever is a symptom of many diseases and is not specific to the outbreak in Surat in 1994.

2. How many people in the world are vulnerable to the effects of climate change?

Correct Answer: Correct answer is: (C) 4 billion.

Exam Relevance: AP Environmental Science, GRE, MCAT, GMAT

Difficulty: Moderate

Concept notes: Climate change affects a large portion of the global population due to its wide-ranging impacts on health, food security, water resources, and living conditions.

Common Mistakes: A common misunderstanding is underestimating the scale of the problem, leading to incorrect choices like 4 million or 40 million.

Explanations: Climate change has significant and widespread effects on human health and well-being. It leads to increased frequency and intensity of extreme weather events, such as heatwaves, floods, and droughts, which can cause direct health impacts like heat stress, injuries, and fatalities. Additionally, it exacerbates existing health issues, such as respiratory and cardiovascular diseases, and can lead to food and water shortages, which affect billions of people globally. Therefore, the correct answer is 4 billion, reflecting the vast number of people vulnerable to these impacts.

Option Analysis:

Option A: 4 million is too low, as climate change affects a much larger portion of the global population.
Option B: 40 million is also too low, as it does not account for the global scale of the issue.
Option C: 4 billion is the correct answer, reflecting the large number of people affected by climate change.
Option D: 4 thousand is far too low and does not represent the global scale of the problem.

3. Which of the following is the effect of chemical waste such as cadmium, chromium and nickel?

Correct Answer: Correct answer is: (A) Damage organs and cause cancer to develop.

Exam Relevance: MCAT, GRE Biology, Environmental Science Exams

Difficulty: Moderate

Concept notes: Heavy metals such as cadmium, chromium, and nickel are toxic substances that can have severe effects on human health when they contaminate the environment.

Common Mistakes: A common misunderstanding is that these metals primarily affect aquatic ecosystems, leading to algal blooms or oxygen depletion, rather than directly impacting human health.

Explanations: Cadmium, chromium, and nickel are known to be toxic heavy metals that can accumulate in the human body over time. These metals can damage organs such as the liver, kidneys, and lungs, and are also classified as carcinogens, meaning they can cause cancer. When these metals are released into the environment, they can enter the food chain and eventually affect human health through ingestion or inhalation.

Option Analysis:

Option A: Correct. Cadmium, chromium, and nickel are known to damage organs and cause cancer.
Option B: Incorrect. While these metals can produce toxins in organisms, this is not their primary effect on human health.
Option C: Incorrect. These metals do not directly reduce the level of oxygen in water.
Option D: Incorrect. Algal blooms are typically caused by nutrient pollution, not heavy metals.

4. Environmentally hazardous materials affect all of the following except?

Correct Answer: Correct answer is: (D) Mental capacity.

Exam Relevance: GRE, MCAT, GMAT, Environmental Science Exams

Difficulty: Easy

Concept notes: Environmentally hazardous materials primarily affect physical health, plants, and animals. Mental capacity is not directly impacted by these materials.

Common Mistakes: A common mistake is assuming that all environmental hazards have a direct impact on mental health.

Explanations: Environmentally hazardous materials such as pollutants, toxic chemicals, and waste products can have significant impacts on the physical environment and health. They can harm plants by disrupting their growth and reproduction, and they can affect animals by causing illness, death, or habitat destruction. These materials can also lead to various health issues in humans, such as respiratory problems, cancer, and other diseases. However, mental capacity is not directly affected by these materials, as it is more related to cognitive functions and brain health, which are not typically impacted by environmental hazards in the same way.

Option Analysis:

Option A: Plants are directly affected by environmentally hazardous materials, as these can disrupt their growth and reproduction.
Option B: Animals are directly affected by environmentally hazardous materials, as these can cause illness, death, or habitat destruction.
Option C: Health is directly affected by environmentally hazardous materials, as these can lead to various health issues such as respiratory problems and cancer.
Option D: Mental capacity is not directly affected by environmentally hazardous materials, as it is more related to cognitive functions and brain health, which are not typically impacted by environmental hazards in the same way.

5. What effect is global climate change having on human diseases?

Correct Answer: Correct answer is: (A) Mosquito-borne diseases are increasing in number.

Exam Relevance: AP Environmental Science, MCAT, GRE Biology

Difficulty: Moderate

Concept notes: Global climate change is affecting the distribution and prevalence of mosquito-borne diseases. Warmer temperatures and changes in precipitation patterns can expand the geographic range of mosquitoes and increase their breeding opportunities, leading to a rise in mosquito-borne diseases.

Common Mistakes: A common misunderstanding is that all human diseases are equally affected by climate change. However, the impact is more pronounced for vector-borne diseases like those transmitted by mosquitoes.

Explanations: Global climate change leads to warmer temperatures and altered precipitation patterns, which can expand the habitats of mosquitoes and increase their breeding cycles. This results in a higher prevalence of mosquito-borne diseases such as malaria, dengue fever, and Zika virus. The other options (colds and viruses, childhood diseases) are not as directly influenced by climate change in the same way.

Option Analysis:

Option A: Correct. Mosquito-borne diseases are increasing due to climate change.
Option B: Incorrect. Colds and viruses are not significantly influenced by climate change.
Option C: Incorrect. Childhood diseases are not directly impacted by climate change in the same manner as mosquito-borne diseases.
Option D: Incorrect. Not all of the previous options are correct.

6. Which group is most likely to be affected by poor air quality due to social inequities?

Correct Answer: Correct answer is: (A) Low-income communities.

Exam Relevance: AP Environmental Science, MCAT, GRE Subject Test in Environmental Science

Difficulty: Easy

Concept notes: Low-income communities are often disproportionately affected by poor air quality due to social inequities.

Common Mistakes: A common misunderstanding is that all groups are equally affected by poor air quality, which is not the case due to social and economic disparities.

Explanations: Low-income communities are more likely to be located near industrial areas, highways, and other sources of pollution. They may also have less access to healthcare and resources to mitigate the effects of poor air quality. Therefore, they are more vulnerable to the health impacts of air pollution.

Option Analysis:

Option A: Correct. Low-income communities are more likely to be affected by poor air quality due to social inequities.
Option B: Incorrect. Tourists are generally not a group that is consistently exposed to poor air quality due to their transient nature.
Option C: Incorrect. While athletes may be more sensitive to air quality due to their high respiratory rates, they are not a group that is disproportionately affected by social inequities.
Option D: Incorrect. Scientists are not a group that is disproportionately affected by poor air quality due to social inequities.

7. What is the number one cause of death after a natural disaster occurs?

Correct Answer: Correct answer is: (C) Diarrhea.

Exam Relevance: Public Health Exams, Environmental Health Exams, Disaster Management Exams

Difficulty: Moderate

Concept notes: Diarrhea is a significant cause of death following natural disasters due to contaminated water and poor sanitation conditions.

Common Mistakes: A common misunderstanding is that natural disasters primarily cause death through direct physical injuries, such as drowning or heart attacks, rather than secondary health issues like diarrhea.

Explanations: Natural disasters often disrupt water supplies and sanitation systems, leading to contaminated water sources. This contamination can cause widespread outbreaks of waterborne diseases, such as cholera and dysentery, which result in diarrhea. Diarrhea can lead to severe dehydration and electrolyte imbalances, which can be fatal, especially in vulnerable populations like children and the elderly.

Option Analysis:

Option A: Heart attacks are not the primary cause of death following natural disasters, although they can occur due to stress and physical exertion.
Option B: Drowning is a significant cause of death during the immediate aftermath of a disaster, particularly in floods, but it is not the leading cause of death in the post-disaster period.
Option C: Diarrhea is the correct answer because it is a major cause of death due to waterborne diseases following natural disasters.
Option D: Strokes are not a primary cause of death following natural disasters, although they can occur due to stress and other factors.

8. Floods can cause diseases to spread.

Correct Answer: Correct answer is: (A) TRUE.

Exam Relevance: AP Environmental Science, MCAT, GRE Biology

Difficulty: Easy

Concept notes: Floods can lead to the spread of waterborne diseases due to contaminated water sources.

Common Mistakes: A common misunderstanding is that floods only cause physical damage and do not affect public health.

Explanations: Floods can contaminate water sources with sewage, chemicals, and other pathogens, leading to the spread of waterborne diseases such as cholera, typhoid, and leptospirosis. The stagnant water left behind by floods can also become breeding grounds for mosquitoes, which can spread diseases like malaria and dengue fever.

Option Analysis:

Option A: Correct. Floods can indeed cause the spread of diseases due to contaminated water and other factors.
Option B: Incorrect. This option would imply that floods do not cause the spread of diseases, which is not accurate.

9. What does S.B.S Stand for?

Correct Answer: Correct answer is: (B) Sick Building Syndrome.

Exam Relevance: Environmental Health Exams, Public Health Exams, Occupational Health Exams

Difficulty: Easy

Concept notes: Sick Building Syndrome (SBS) refers to situations where occupants of a building experience acute health and comfort effects that appear to be linked to time spent in the building, but no specific illness or cause can be identified.

Common Mistakes: A common misunderstanding is that SBS is caused by a single identifiable source, such as a specific chemical or pathogen. However, SBS is typically associated with a combination of factors including poor indoor air quality, inadequate ventilation, and other environmental issues.

Explanations: Sick Building Syndrome (SBS) is a term used to describe a range of symptoms and health issues that are linked to time spent in a particular building. These symptoms can include headaches, eye, nose, or throat irritation, dry cough, dry or itchy skin, dizziness, nausea, difficulty in concentrating, and fatigue. The term S.B.S. is commonly used as an abbreviation for Sick Building Syndrome in the context of environmental and human health.

Option Analysis:

Option A: Special Boat Service is unrelated to environmental and human health.
Option B: Sick Building Syndrome is the correct term for the health issues associated with indoor environments.
Option C: Seasonal Building Scheme is not a recognized term in the context of environmental and human health.
Option D: Sick Boardroom Syndrome is not a recognized term in the context of environmental and human health.

Mnemonic: SBS: Sickness Building Syndrome

10. A lake stays warmer than nearby land after sunset. Which concept best explains this?

Correct Answer: Correct answer is: (A) Water's higher specific heat stores heat longer.

Exam Relevance: AP Environmental Science, GRE Subject Test in Environmental Science, MCAT

Difficulty: Moderate

Concept notes: Water has a higher specific heat capacity compared to land, meaning it can absorb and retain more heat energy. This property allows water bodies to stay warmer than nearby land after sunset.

Common Mistakes: A common misunderstanding is that water reflects more sunlight (albedo) than land, which is not the case. The key factor is the specific heat capacity of water.

Explanations: Water's higher specific heat capacity means it requires more energy to change its temperature compared to land. Therefore, after sunset, the lake retains the heat absorbed during the day longer than the land, which cools down more quickly.

Option Analysis:

Option A: Correct. Water's higher specific heat capacity allows it to store heat longer.
Option B: Incorrect. Albedo refers to the reflectivity of a surface, not its heat storage capacity.
Option C: Incorrect. Air's lower specific heat capacity does not warm the lake; it is the water's higher specific heat capacity that retains heat.
Option D: Incorrect. Heat moves from hot to cold areas, not the other way around.

Frequently Asked Questions

What is the relationship between environmental health and human health?

Environmental health encompasses the conditions and factors that affect human health and quality of life. It includes air and water quality, sanitation, and exposure to environmental toxins, all of which can impact physical and mental health.

How do natural disasters affect public health?

Natural disasters such as floods and hurricanes can lead to injuries, waterborne diseases, and mental health issues. They can also disrupt essential services like healthcare and sanitation, exacerbating health risks.

What is the impact of climate change on human health?

Climate change can increase the frequency of extreme weather events, alter the distribution of mosquito-borne diseases, and affect food and water security. These changes can lead to increased health risks, particularly for vulnerable populations.

How do environmental toxins affect human health?

Exposure to environmental toxins such as heavy metals and air pollutants can lead to a range of health issues, including respiratory problems, neurological disorders, and cancer. Reducing exposure is crucial for maintaining public health.

What role do public health measures play in addressing environmental hazards?

Public health measures, such as improving sanitation and air quality, can mitigate the impact of environmental hazards. These measures help protect communities from diseases and other health risks associated with environmental factors.

🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books