🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books

Agriculture And Environment Quiz 20 (10 MCQs)

This set of multiple-choice questions evaluates knowledge on terrace farming, sustainable agricultural practices, pest control, and environmental impact. It covers topics such as soil conservation, water management, and the use of organic matter like composting. The questions assess understanding of agricultural technology, chemical usage, and the balance between productivity and environmental sustainability.

Quiz Instructions

Select an option to see the correct answer instantly.

1. There are states in India which are using fertilisers, pesticides and insecticides at excessive level to increase their agricultural production. Identify the states which are at prominent level from the following options.

Correct Answer: Correct answer is: (B) Haryana and Punjab.

Exam Relevance: UPSC, Civil Services Exam, State PSC Exams

Difficulty: Moderate

Concept notes: Excessive use of fertilisers, pesticides, and insecticides is a significant issue in certain Indian states due to intensive agricultural practices aimed at increasing crop yields.

Common Mistakes: A common mistake is to assume that all agricultural states in India use these chemicals excessively. However, the intensity of use varies significantly across different states.

Explanations: Haryana and Punjab are known for their intensive agricultural practices, particularly in the cultivation of crops like wheat and rice. These states have been using high levels of fertilisers, pesticides, and insecticides to maintain high yields. This practice has led to environmental concerns such as soil degradation, water pollution, and health issues among farmers and consumers.

Option Analysis:

Option A: Karnataka and Kerala are not known for excessive use of fertilisers, pesticides, and insecticides at the same level as Haryana and Punjab.
Option B: Haryana and Punjab are the correct states due to their intensive agricultural practices and high usage of these chemicals.
Option C: Punjab is correct, but Gujarat is not known for the same level of excessive use as Haryana and Punjab.
Option D: Haryana is correct, but Telangana is not known for the same level of excessive use as Punjab.

2. The kind of farming through which steep areas can also be used for cultivation is classified as .....

Correct Answer: Correct answer is: (B) Terrace Farming.

Exam Relevance: AP Environmental Science, Geography Olympiad, Agricultural Science Exams

Difficulty: Easy

Concept notes: Terrace farming is a method of farming on steep slopes by creating a series of terraces or steps.

Common Mistakes: A common misunderstanding is that forestation or deforestation involves farming practices, but they are related to tree planting and removal, respectively.

Explanations: Terrace farming is specifically designed to cultivate crops on steep slopes by creating flat, level areas called terraces. This method prevents soil erosion and allows for effective water management, making it ideal for steep areas.

Option Analysis:

Option A: Forestation involves planting trees and is not a farming method for steep areas.
Option B: Terrace farming is the correct method for cultivating crops on steep slopes.
Option C: Desertification is the process of land becoming desert and is not a farming method.
Option D: Deforestation is the removal of trees and is not a farming method for steep areas.

3. Choose correct source of human food.

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

Exam Relevance: AP Environmental Science, IB Environmental Systems and Societies, Agricultural Science Exams

Difficulty: Easy

Concept notes: Fisheries are a significant source of human food, providing a variety of fish and seafood that are consumed globally.

Common Mistakes: A common misunderstanding is that urbanization is a direct source of food, when in fact it is more related to the development of cities and infrastructure.

Explanations: Fisheries provide a substantial amount of protein and other nutrients to human diets. They are a primary source of food for many populations around the world, especially in coastal and island regions. Urbanization, on the other hand, refers to the process of population concentration in cities and the development of urban infrastructure, which does not directly contribute to food production.

Option Analysis:

Option A: Fishery is a correct source of human food, providing fish and seafood.
Option B: Urbanization is not a direct source of human food; it is related to city development.

4. Which of these groups would be MOST concerned with technological developments in insect control?

Correct Answer: Correct answer is: (C) Agriculturists (farming).

Exam Relevance: AP Environmental Science, Agricultural Science Exams, Crop Science Exams

Difficulty: Easy

Concept notes: Agriculturists are directly involved in farming and crop production, which can be significantly affected by insect infestations. Therefore, they would be most concerned with technological developments in insect control to protect their crops and ensure productivity.

Common Mistakes: A common misunderstanding might be that other groups, such as paleontologists or archaeologists, would be more concerned with insect control. However, these groups focus on historical and prehistoric studies rather than current agricultural practices.

Explanations: Agriculturists rely heavily on the health and productivity of their crops. Insect infestations can cause significant damage to crops, leading to reduced yields and economic losses. Therefore, technological advancements in insect control are crucial for agriculturists to maintain and improve their crop yields. Other groups, such as paleontologists, archaeologists, and meteorologists, do not have the same direct dependency on crop health and productivity.

Option Analysis:

Option A: Paleontologists study ancient life forms and fossils, which are not directly impacted by current insect control technologies.
Option B: Archaeologists focus on ancient human civilizations and artifacts, which are not directly affected by modern insect control methods.
Option C: Agriculturists are directly involved in farming and crop production, making them the most concerned with insect control technologies to protect their crops.
Option D: Meteorologists study weather patterns and climate, which are not directly related to insect control in agriculture.

5. Which action reduces urban runoff?

Correct Answer: Correct answer is: (A) Contour plowing and no-till farming.

Exam Relevance: AP Environmental Science, GATE, GRE Subject Test in Ecology and Evolution

Difficulty: Moderate

Concept notes: Contour plowing and no-till farming are agricultural practices that help reduce soil erosion and runoff. These methods improve water infiltration and retention in the soil, thereby reducing the amount of water that flows off the land as runoff.

Common Mistakes: A common misunderstanding is that urban runoff is primarily influenced by agricultural practices. However, urban runoff is more directly affected by the amount of impervious surfaces like pavement and the management of stormwater in urban areas.

Explanations: Contour plowing involves plowing along the natural contours of the land, which helps to slow down water flow and reduce erosion. No-till farming involves planting crops without disturbing the soil, which helps to maintain soil structure and increase water infiltration. Both practices reduce the amount of water that runs off the land, thereby reducing urban runoff.

Option Analysis:

Option A: Contour plowing and no-till farming are agricultural practices that reduce soil erosion and increase water retention, thereby reducing urban runoff.
Option B: Dumping waste in rivers increases pollution and does not reduce urban runoff.
Option C: Increasing pavement areas increases impervious surfaces, which increases urban runoff.
Option D: Ignoring soil erosion leads to increased soil loss and higher runoff, which does not reduce urban runoff.

6. What is one negative effect of producing more ethanol for use as fuel?

Correct Answer: Correct answer is: (C) Rising prices of certain food.

Exam Relevance: AP Environmental Science, GRE, GMAT

Difficulty: Moderate

Concept notes: Ethanol production often uses crops like corn and sugarcane, which are also important food sources. When more of these crops are diverted to ethanol production, it can lead to a decrease in their availability for food, causing prices to rise.

Common Mistakes: A common misunderstanding is that ethanol production primarily affects only the fuel market, without considering its impact on food prices.

Explanations: Ethanol production often relies on crops such as corn and sugarcane. When these crops are used for fuel, the supply available for food decreases, leading to higher prices for these food items. This is a direct consequence of the increased demand for crops in the biofuel sector.

Option Analysis:

Option A: Ethanol production does not directly increase air pollution, as it is often considered a cleaner fuel compared to traditional gasoline.
Option B: Ethanol production does not influence the number of cars people buy; it affects the type of fuel used in existing vehicles.
Option C: Ethanol production can lead to rising prices of certain food items due to the diversion of crops from food to fuel.
Option D: Ethanol production can reduce the need to import oil, as it provides an alternative domestic fuel source.

7. What do conventional farmers do to keep pests off their crops?

Correct Answer: Correct answer is: (C) Spray the crops with pesticides.

Exam Relevance: AP Environmental Science, GATE Agricultural Engineering, Civil Service Exams

Difficulty: Easy

Concept notes: Conventional farmers use pesticides to control pests that can damage crops.

Common Mistakes: A common misunderstanding is that farmers might use physical barriers or natural methods exclusively, but conventional farming often relies on chemical pesticides.

Explanations: Conventional farmers typically use pesticides to protect their crops from pests. Pesticides are chemical substances designed to kill or repel insects, weeds, and other organisms that can harm crops. This method is widely used because it is effective and can be applied on a large scale.

Option Analysis:

Option A: Electric fences are not typically used for pest control in crops.
Option B: Burning grass is not a common practice for pest control in conventional farming.
Option C: Pesticides are commonly used by conventional farmers to control pests.
Option D: Growing crops close together can increase competition for resources but does not directly control pests.

8. Because it uses less pesticides, organic farming ..... pollution to the soil and the air.

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

Exam Relevance: AP Environmental Science, GRE Subject Test in Biology, GATE Agricultural Engineering

Difficulty: Easy

Concept notes: Organic farming typically uses fewer synthetic pesticides compared to conventional farming methods. This reduction in pesticide use leads to less pollution of the soil and air.

Common Mistakes: A common misunderstanding is that organic farming completely eliminates pollution, but it only reduces it compared to conventional methods.

Explanations: Organic farming practices aim to minimize the use of synthetic pesticides and fertilizers. By using fewer pesticides, organic farming reduces the amount of these chemicals that can contaminate the soil and air. This reduction in chemical inputs is a key aspect of organic farming's environmental benefits.

Option Analysis:

Option A: Correct. Organic farming reduces pollution to the soil and air by using fewer pesticides.
Option B: Incorrect. "Reducing" is a present participle and does not fit the sentence structure.
Option C: Incorrect. "Reduced" is past tense and does not fit the context of the ongoing action.
Option D: Incorrect. None of the above is not applicable since Option A is correct.

9. Farmer Joe plowed curved rows that followed the shape of the land in order to create water breaks, what method did he use?

Correct Answer: Correct answer is: (A) Contour plowing.

Exam Relevance: AP Environmental Science, GATE Agricultural Engineering, Civil Service Exams

Difficulty: Moderate

Concept notes: Contour plowing is a method of plowing along the contours of the land to reduce soil erosion and manage water runoff.

Common Mistakes: A common misunderstanding is that contour plowing is the same as terrace farming, which involves creating flat steps on a slope to prevent erosion.

Explanations: Contour plowing involves plowing along the natural contours of the land, which helps to create water breaks and reduce soil erosion. This method is particularly useful on sloped land where water runoff can be a significant issue. By plowing along the contours, the furrows act as small dams, slowing down water flow and allowing it to infiltrate the soil more effectively, thus reducing erosion.

Option Analysis:

Option A: Correct. Contour plowing is the method of plowing along the contours of the land to reduce soil erosion and manage water runoff.
Option B: Incorrect. Crop rotation involves changing the type of crop grown in a field over time to improve soil health and reduce pests, but it does not directly address water management or erosion control.
Option C: Incorrect. Subsoil preservation is not a recognized method in agriculture. It might refer to maintaining the integrity of the subsoil layer, but it is not a specific technique for managing water or erosion.
Option D: Incorrect. Terrace farming involves creating flat steps on a slope to prevent erosion, but it does not involve plowing along the contours of the land.

10. What can compost be used for?

Correct Answer: Correct answer is: (D) Growing a garden.

Exam Relevance: AP Environmental Science, GED, SAT Subject Test in Biology

Difficulty: Easy

Concept notes: Compost is a mixture of decaying organic matter that is used to improve soil fertility and structure, which is essential for growing plants in a garden.

Common Mistakes: A common misunderstanding is that compost can be used for purposes unrelated to gardening, such as driving cars, making clothes, or building houses.

Explanations: Compost is primarily used to enhance soil quality by providing essential nutrients and improving soil structure. This makes it ideal for growing plants in a garden. Compost enriches the soil, promotes healthy plant growth, and supports beneficial microorganisms.

Option Analysis:

Option A: Compost cannot be used for driving cars as it is not a fuel source.
Option B: Compost is not used for making clothes as it is not a textile material.
Option C: Compost is not used for building houses as it is not a construction material.
Option D: Compost is used for growing a garden as it improves soil fertility and structure.

Frequently Asked Questions

What is terrace farming?

Terrace farming is a method used on steep slopes to prevent soil erosion by creating a series of terraces or steps, which help to slow down water runoff and retain soil.

How does contour plowing help the environment?

Contour plowing involves plowing across a slope following its contours, which helps to reduce soil erosion and water runoff, thereby improving soil fertility and preventing environmental pollution.

What is the impact of excessive chemical use in conventional farming?

Excessive use of chemicals in conventional farming can lead to soil degradation, water pollution, and harm to beneficial insects and wildlife, ultimately affecting the overall health of the environment.

How does organic farming contribute to soil fertility?

Organic farming uses natural methods like composting and crop rotation to enhance soil fertility, avoiding synthetic chemicals that can deplete the soil of essential nutrients over time.

What is the role of water management in agriculture?

Water management in agriculture involves techniques to efficiently use water resources, such as irrigation systems and rainwater harvesting, to ensure crop health and productivity while minimizing waste and environmental impact.

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