Environmental Science, Chapter 10, Section 4.
We are deep into our science books, and we can give ourselves a pat on the back for making it this far. Don’t rest yet, however, as there’s still ground to cover in our ongoing study of environmental science. So without further ado, let’s jump into Environmental Science, Chapter 10, Section 4!
- 1.
According to pesticide proponents, pesticides
- A.
Work fast
- B.
Increase profit for farmers
- C.
Save lives
- D.
Increase food supplies
- E.
All of these answers
Correct Answer
E. All of these answersExplanation
According to pesticide proponents, pesticides are believed to work fast, increase profit for farmers, save lives, and increase food supplies. This means that proponents argue that pesticides have the ability to quickly eliminate pests, leading to higher profits for farmers by protecting their crops, preventing diseases that can be harmful to humans, and ultimately increasing the overall food production.Rate this question:
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- 2.
Which of the following is a serious problem associated with the use of modern synthetic pesticides?
- A.
Pest organisms can become genetically resistant
- B.
They can become extremely expensive for farmers to utilize
- C.
These pesticides often kill beneficial insect populations
- D.
They pollute the environment
- E.
All of these answers
Correct Answer
E. All of these answersExplanation
Modern synthetic pesticides pose a serious problem as they can lead to pest organisms developing genetic resistance, making them harder to control. Additionally, these pesticides can be costly for farmers to use, affecting their profitability. Furthermore, they often harm beneficial insect populations, disrupting the ecosystem's balance. Lastly, these pesticides can also contribute to environmental pollution, impacting both wildlife and human health. Therefore, all of the given answers correctly identify serious problems associated with the use of modern synthetic pesticides.Rate this question:
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- 3.
Since 1945, approximately _____ species of insects have developed resistance to one or more insecticides
- A.
50
- B.
500
- C.
1,000
- D.
2,000
- E.
5,000
Correct Answer
C. 1,000Explanation
Since 1945, around 1,000 species of insects have developed resistance to one or more insecticides. This means that these insects have evolved mechanisms to survive exposure to insecticides that would normally kill them. This resistance can occur through various mechanisms such as genetic mutations or changes in behavior. The development of resistance in insects is a significant concern as it poses challenges for pest control and can lead to reduced effectiveness of insecticides over time.Rate this question:
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- 4.
Broad-spectrum pesticides may increase the number of best species through
- A.
Development of genetic resistance
- B.
Killing of predators of the pest species
- C.
Killing of parasites that may have kept the population of the pest low
- D.
Both killing of predators of the pest species and killing of parasites that may have kept the population of the pest low
- E.
All of these answers are correct
Correct Answer
E. All of these answers are correctExplanation
Broad-spectrum pesticides can increase the number of pest species by multiple mechanisms. Firstly, they can lead to the development of genetic resistance in the pests, making them less susceptible to the pesticide over time. Additionally, these pesticides can kill the predators of the pest species, which would have otherwise helped control their population. Furthermore, they can also eliminate parasites that naturally keep the pest population low. Therefore, all of the given answers are correct in explaining how broad-spectrum pesticides may increase the number of pest species.Rate this question:
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- 5.
Which of the following approaches would be the least beneficial in trying to reduce insect damage
- A.
Rotating crops
- B.
Genetic engineering of crops
- C.
Planting monocultures
- D.
Bringing in natural enemies
- E.
Planting polycultures
Correct Answer
C. Planting monoculturesExplanation
Planting monocultures would be the least beneficial approach in trying to reduce insect damage. Monocultures refer to the practice of growing only one type of crop in a large area. This lack of diversity makes the crops more vulnerable to insect pests, as the pests can easily spread and multiply in such a concentrated environment. In contrast, rotating crops, genetic engineering of crops, bringing in natural enemies, and planting polycultures all promote biodiversity and can help reduce insect damage by disrupting pest lifecycles and providing natural pest control mechanisms.Rate this question:
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- 6.
Biological control of pests
- A.
Costs more money than pesticides to use
- B.
Is toxic to use
- C.
Is fast-acting
- D.
Is not toxic to use
- E.
Has never been very effective
Correct Answer
D. Is not toxic to useExplanation
Biological control of pests is a method that involves using natural predators, parasites, or pathogens to control pest populations. Unlike pesticides, which can be toxic to both pests and the environment, biological control is not toxic to use. This method relies on the introduction or enhancement of natural enemies to regulate pest populations, providing a more eco-friendly and sustainable approach to pest management. While it may require additional costs and may not always be as fast-acting as pesticides, the fact that it is not toxic to use makes it a preferred option for many.Rate this question:
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- 7.
A pheromone is
- A.
A new form of chemical insecticide awaiting approval by FIFRA
- B.
A strong herbicide
- C.
A species-specific chemical sex attractant
- D.
A bloodstream chemical that controls an organism's growth and development
- E.
A safe, natural pesticide
Correct Answer
C. A species-specific chemical sex attractantExplanation
A pheromone is a species-specific chemical sex attractant. Pheromones are chemicals that are secreted by organisms to communicate with others of the same species. They are used to attract mates and signal readiness for reproduction. By releasing pheromones, organisms can attract potential partners and increase their chances of successful reproduction. Pheromones are specific to each species, meaning that they only attract individuals of the same species.Rate this question:
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- 8.
Which of the following statements is a weakness of using pheromones?
- A.
They are costly and time-consuming to produce
- B.
They are more effective in the juvenile stage than the adult stage
- C.
Insects develop resistance to pheromones
- D.
They are biologically magnified in nontarget species
- E.
They only work in large amounts
Correct Answer
A. They are costly and time-consuming to produceExplanation
The weakness of using pheromones is that they are costly and time-consuming to produce. This means that it requires a significant investment of resources and time to produce enough pheromones for effective use. This can be a limitation in terms of scalability and practicality, especially in large-scale applications or when dealing with limited resources.Rate this question:
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- 9.
A hormone is
- A.
A strong new form of chemical insecticide awaiting approval by FIFRA
- B.
A strong herbicide
- C.
A species-specific chemical sex attractant
- D.
A chemical that controls an organisms's growth and development
- E.
A strong pesticide
Correct Answer
D. A chemical that controls an organisms's growth and developmentExplanation
The correct answer is "A chemical that controls an organism's growth and development." This is because hormones are chemical substances produced by the body that regulate various physiological processes, including growth and development. They act as messengers, signaling cells or tissues to perform specific functions and maintain homeostasis within the organism. Hormones play a crucial role in controlling processes such as metabolism, reproduction, and response to stress.Rate this question:
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- 10.
Integrated pest management ___ than pesticides
- A.
Requires more expert knowledge about individual pest-crop situations
- B.
Is faster acting
- C.
Requires more fertilizer and irrigation
- D.
Is more expensive
- E.
None of these answers
Correct Answer
A. Requires more expert knowledge about individual pest-crop situationsExplanation
Integrated pest management requires more expert knowledge about individual pest-crop situations. This is because integrated pest management involves the use of various techniques, such as biological control and cultural practices, to manage pests in a sustainable and environmentally friendly manner. It requires a deep understanding of the specific pests and crops involved in order to effectively implement the most appropriate strategies.Rate this question:
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- 11.
An integrated pest management program attempts to
- A.
Increase inputs of fertilizer and irrigation water
- B.
Reduce crop damage to an economically tolerable level
- C.
Increase pesticide use
- D.
Decrease yields and increase costs
- E.
Increase the development of disease-resistant pests
Correct Answer
B. Reduce crop damage to an economically tolerable levelExplanation
An integrated pest management program aims to minimize crop damage to a level that is economically acceptable. This means that the program focuses on implementing various strategies to control pests in a way that is both effective and cost-efficient. By utilizing multiple pest control methods such as biological control, cultural practices, and targeted pesticide use, the program seeks to keep crop damage at a tolerable level without relying solely on increased pesticide use, which can be harmful to the environment and costly for farmers.Rate this question:
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- 12.
Switching to integrated pest management
- A.
Will be easy to do because it is very simple
- B.
Is opposed by politically and economically powerful agricultural chemical companies
- C.
Is difficult because it only works for a few pests
- D.
Is strongly opposed by environmentalists
- E.
All of these answers
Correct Answer
B. Is opposed by politically and economically powerful agricultural chemical companiesExplanation
The correct answer is "Is opposed by politically and economically powerful agricultural chemical companies". This answer suggests that switching to integrated pest management may not be easy because it faces opposition from agricultural chemical companies who have political and economic influence.Rate this question:
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- 13.
Perhaps the most important thing about Rachel Carson's investigative work on the environmental effects of pesticides, and her publication of "Silent Spring" is
- A.
The number of errors in the book
- B.
Her failure to include a discussion about integrated pest management
- C.
That it laid the groundwork for later, more serious work
- D.
That it eventually led to the banning of many pesticides in the united states and other countries
- E.
That it is a remarkable book considering it was written by a person without any scientific training
Correct Answer
D. That it eventually led to the banning of many pesticides in the united states and other countriesExplanation
Rachel Carson's investigative work on the environmental effects of pesticides, as well as her publication of "Silent Spring," eventually led to the banning of many pesticides in the United States and other countries. This suggests that her work had a significant impact on environmental policy and regulation, highlighting the detrimental effects of pesticides and advocating for their restriction. The banning of these pesticides demonstrates the influence and importance of Carson's work in raising awareness about the potential dangers of these chemicals and advocating for more sustainable and environmentally friendly alternatives.Rate this question:
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- 14.
The sale and use of pesticides in the United States is regulated by which agencies?
- A.
FDA, EPA, and USDA
- B.
USDA, FDA, and ATF
- C.
CIA, FDA, and USDA
- D.
FBI, FDA, and EPA
- E.
EPA, ATF, and FBI
Correct Answer
A. FDA, EPA, and USDAExplanation
The correct answer is FDA, EPA, and USDA. The FDA (Food and Drug Administration) regulates pesticides in food and animal feed. The EPA (Environmental Protection Agency) is responsible for regulating the sale, distribution, and use of pesticides to protect human health and the environment. The USDA (United States Department of Agriculture) provides oversight and regulation of pesticides used in agriculture, including crop protection and pest control.Rate this question:
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- 15.
In the united states, the use of pesticides has increased by 33-fold since 1942. About 31% of crops were lost to pests in the 1940s. Today the percentage of food crops lost to pests is
- A.
Less than in the 1940s, due to the increase pesticide use
- B.
More than in the 1940s, at about 37%
- C.
The same as in the 1940s
- D.
There is no data to allow a comparison of this type
- E.
More than in the 1940s, at about 40%
Correct Answer
C. The same as in the 1940sExplanation
The explanation for the given correct answer is that the passage states that the use of pesticides has increased by 33-fold since 1942 in the United States. However, it does not provide any information about the effectiveness of these pesticides in reducing crop loss to pests. Therefore, it can be inferred that the percentage of food crops lost to pests is the same as in the 1940s, as there is no data to suggest otherwise.Rate this question:
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- 16.
The National Academy of Sciences has estimated that 98% of the potential risk of developing cancer from pesticide residue on food grown in the U.S. could be eliminated if
- A.
The entire industrialized agriculture business switched to integrated pest management
- B.
Genetically modified foods were grown exclusively
- C.
Pheromone traps were used more effectively to capture pests
- D.
EPA standards for pre-1972 pesticides were as strict as standards for later pesticides
- E.
None of these answers
Correct Answer
D. EPA standards for pre-1972 pesticides were as strict as standards for later pesticidesExplanation
The National Academy of Sciences estimated that 98% of the potential risk of developing cancer from pesticide residue on food could be eliminated if EPA standards for pre-1972 pesticides were as strict as standards for later pesticides. This suggests that the stricter regulations on later pesticides have been effective in reducing the risk of cancer from pesticide residue, and if the same standards were applied to pre-1972 pesticides, a significant reduction in risk could be achieved.Rate this question:
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Mar 20, 2023Quiz Edited by
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May 08, 2012Quiz Created by
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