Environmental Biology

Ecotoxicology MCQs with Answers

Welcome to the Ecotoxicology MCQs with Answers. In this post, we have shared Ecotoxicology Online Test for different competitive exams. Find practice Ecotoxicology Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Ecotoxicology.

Ecotoxicology is the study of the effects of toxic chemicals on biological organisms, particularly within the context of ecosystems. This interdisciplinary field combines elements of ecology, toxicology, and environmental science to understand how pollutants affect the health of living organisms and the environment. Researchers in ecotoxicology investigate the sources, distribution, and impacts of contaminants such as pesticides, heavy metals, and industrial chemicals on wildlife and ecosystems.

A primary focus of ecotoxicology is assessing the ecological risk of chemical pollutants. This involves evaluating the toxicity levels of various substances, their persistence in the environment, and their potential to bioaccumulate in food chains. For instance, chemicals like mercury and polychlorinated biphenyls (PCBs) can accumulate in fish and other aquatic organisms, posing significant risks to predators, including humans, who consume these species. Understanding these processes is essential for developing regulations and guidelines to protect environmental and human health.

Biomonitoring is a crucial method used in ecotoxicology to track the presence and effects of pollutants. By analyzing biological indicators such as tissues, fluids, and species population data, scientists can detect contamination levels and assess ecological impacts. Additionally, ecotoxicology plays a vital role in environmental risk assessment and the development of remediation strategies to mitigate pollution effects.

Ecotoxicology Online Quiz

By presenting 3 options to choose from, Ecotoxicology Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Ecotoxicology Questions and Answers and click over the correct answer.

  • Test Name: Ecotoxicology MCQ Quiz Practice
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks: 40
  • Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

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Ecotoxicology MCQs

Ecotoxicology

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1 / 40

What is the term for the recovery of degraded ecosystems through human intervention?

2 / 40

Which term describes chemicals that cause cancer?

3 / 40

Which term refers to the measure of the degree to which a substance can damage an organism?

4 / 40

What is bioaccumulation?

5 / 40

Which substance is known for causing biomagnification in food chains?

6 / 40

What is a common source of lead contamination in the environment?

7 / 40

What is the main concern with microplastics in the environment?

8 / 40

Which organization is responsible for regulating chemical safety in the United States?

9 / 40

Which term describes a situation where a substance becomes more concentrated in organisms at higher trophic levels?

10 / 40

What is biomagnification?

11 / 40

Which metal is particularly toxic to aquatic life and often monitored in water quality assessments?

12 / 40

What is the primary focus of ecotoxicology?

13 / 40

What is the term for the introduction of harmful substances into the environment?

14 / 40

What is a common effect of heavy metal contamination in aquatic ecosystems?

15 / 40

Which term describes the study of how pollutants move through the environment?

16 / 40

What does the term "persistent organic pollutant" (POP) refer to?

17 / 40

Which term refers to the maximum concentration of a substance that organisms can tolerate without adverse effects?

18 / 40

Which pollutant is primarily responsible for the depletion of the ozone layer?

19 / 40

What is eutrophication?

20 / 40

What is the term for substances that disrupt the endocrine system?

21 / 40

Which term describes the spread of pollutants from one part of the environment to another?

22 / 40

What is the effect of oil spills on marine life?

23 / 40

Which process involves the breakdown of pollutants by microorganisms?

24 / 40

Which gas is a major contributor to acid rain?

25 / 40

Which term refers to the measurement of toxic effects on living organisms?

26 / 40

Which pollutant is commonly known to cause eutrophication in water bodies?

27 / 40

What is the purpose of an environmental impact assessment (EIA)?

28 / 40

What is the main effect of soil contamination by heavy metals?

29 / 40

What is the purpose of environmental monitoring programs?

30 / 40

What is a primary route of human exposure to environmental pollutants?

31 / 40

Which chemical is commonly associated with the thinning of bird eggshells?

32 / 40

What is the main effect of endocrine disruptors on wildlife?

33 / 40

What is the primary source of mercury pollution in the environment?

34 / 40

What is the main environmental concern with plastic pollution?

35 / 40

What is ecotoxicology?

36 / 40

Which term describes the variety of life in a particular habitat or ecosystem?

37 / 40

What is the main consequence of habitat fragmentation?

38 / 40

Which term describes the ability of a substance to be broken down by natural processes?

39 / 40

What is the primary effect of PCBs (polychlorinated biphenyls) in the environment?

40 / 40

Which pesticide is known for its long-term environmental persistence and harmful effects?

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