Grade 11 Environmental Science Final Review
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Questions and Answers

What is the total mark value for the multiple-choice section of the exam?

  • 35 marks
  • 25 marks (correct)
  • 20 marks
  • 30 marks

What is the recommended time allocation for the Diagram or Data Interpretation section of the exam?

  • 15 minutes
  • 30 minutes
  • 20 minutes
  • 25 minutes (correct)

Which of the following is NOT a prohibited material during the exam?

  • Phones
  • Scientific Calculators (correct)
  • Programmable calculators
  • Smartwatches

What is the total duration of the exam?

<p>1.5 hours (A)</p> Signup and view all the answers

How many pages are there in the exam booklet?

<p>8 (C)</p> Signup and view all the answers

What percentage of the overall grade is this final examination worth?

<p>20% (B)</p> Signup and view all the answers

What is the recommended time allocation for the Long Answer section of the exam?

<p>15 minutes (A)</p> Signup and view all the answers

What is the name of the teacher who is responsible for this exam?

<p>Ms. Sulej (D)</p> Signup and view all the answers

What soil texture class corresponds to 10% sand, 15% silt, and 75% clay?

<p>clay soil (C)</p> Signup and view all the answers

What is the nitrogen content in kg for a 3 kg bag of fertilizer with a nitrogen ratio of 20%?

<p>0.6 kg (D)</p> Signup and view all the answers

Which soil texture class has a sand percentage of 21%, silt percentage of 41%, and clay percentage of 38%?

<p>clay loam (C)</p> Signup and view all the answers

How much potassium is in a 3 kg bag of fertilizer if it has a potassium ratio of 5%?

<p>0.15 kg (A)</p> Signup and view all the answers

What is the soil texture for a mixture containing 52% sand, 21% silt, and 27% clay?

<p>sandy clay loam (B)</p> Signup and view all the answers

Which type of smog is primarily caused by the reaction of sunlight with pollutants like nitrogen oxides and volatile organic compounds (VOCs)?

<p>Photochemical smog (A)</p> Signup and view all the answers

Which of the following is an example of a secondary pollutant?

<p>Nitric acid (HNO3) (B)</p> Signup and view all the answers

Which statement regarding the natural greenhouse effect is false?

<p>The atmosphere absorbs all outgoing heat (C)</p> Signup and view all the answers

Which of the following can contribute to the extinction of a species?

<p>All of the above (D)</p> Signup and view all the answers

Which fossil fuel is primarily mined through fracking?

<p>Natural Gas (C)</p> Signup and view all the answers

This energy source is based on the movement of the atmosphere:

<p>Wind (D)</p> Signup and view all the answers

Which of the following is not a core principle of regenerative agriculture?

<p>Using synthetic fertilizers to boost crop yield (D)</p> Signup and view all the answers

Which of the following best defines natural capital?

<p>The sum of Earth's resources, including ecosystems, biodiversity, and natural resources, that provide goods and services (A)</p> Signup and view all the answers

What happens when soil is tilled?

<p>Soil erosion can increase. (B)</p> Signup and view all the answers

What is an example of a tree killer?

<p>Pests like bark beetles (D)</p> Signup and view all the answers

What are microplastics and their concerns for the environment?

<p>Small particles from manufacturing processes. (A)</p> Signup and view all the answers

What is a multi-species cover crop?

<p>Multiple types of crops planted together. (C)</p> Signup and view all the answers

What is methane gas and how is it dealt with in landfills?

<p>It is captured and used as energy. (B)</p> Signup and view all the answers

Why are microbes important in the composting process?

<p>They break down organic matter and recycle nutrients. (C)</p> Signup and view all the answers

What is regenerative agriculture?

<p>An approach that improves soil health and biodiversity. (A)</p> Signup and view all the answers

What distinguishes renewable energy from non-renewable energy?

<p>Renewable energy comes from natural processes that are continually replenished. (C)</p> Signup and view all the answers

What is the primary advantage of single tree selection for forest management?

<p>It maintains an uneven-aged structure in the forest. (C)</p> Signup and view all the answers

Which of the following is a disadvantage of microplastics in human health?

<p>Increased risk of respiratory diseases. (D)</p> Signup and view all the answers

How do microplastics impact marine ecosystems?

<p>They can cause blockages and malnutrition in marine species. (C)</p> Signup and view all the answers

What are endocrine disruptors found in microplastics associated with?

<p>Causing developmental defects. (D)</p> Signup and view all the answers

Which method of tree harvesting keeps the forest’s canopy intact?

<p>Single tree selection. (A)</p> Signup and view all the answers

What is a potential consequence of biomagnification involving microplastics?

<p>Accumulation of toxins in larger marine animals. (C)</p> Signup and view all the answers

Which chemical found in microplastics is known to disrupt hormone systems?

<p>Bisphenol A (BPA). (D)</p> Signup and view all the answers

What health issues can arise from inhalation of microplastics?

<p>Lung irritation and chronic respiratory conditions. (C)</p> Signup and view all the answers

What is the primary difference between weak and strong sustainability?

<p>Weak sustainability allows for a decrease in natural capital provided that human capital increases, while strong sustainability requires maintaining both equally. (D)</p> Signup and view all the answers

Which of the following is NOT a type of diversity?

<p>Habitat diversity (D)</p> Signup and view all the answers

What is the main reason for the formation of monomethyl mercury in the environment?

<p>The interaction of elemental mercury with microorganisms in aquatic environments (A)</p> Signup and view all the answers

Which of the following best describes the relationship between bioaccumulation and biomagnification?

<p>Bioaccumulation is the process of pollutants accumulating in individual organisms, while biomagnification is the process of pollutants becoming more concentrated at higher trophic levels. (A)</p> Signup and view all the answers

Which of the following is NOT a source of stationary pollution?

<p>Vehicles (B)</p> Signup and view all the answers

Which of the following is a primary pollutant?

<p>Carbon monoxide (CO) (A), PM2.5 (C), Nitrogen dioxide (NO2) (E)</p> Signup and view all the answers

Why is carbon dioxide considered the most significant contributor to global warming, despite having a relatively low warming potential?

<p>All of the above (D)</p> Signup and view all the answers

What is the main difference between shortwave (SW) radiation and longwave (LW) radiation?

<p>Shortwave radiation is primarily emitted by the sun, while longwave radiation is primarily emitted by Earth. (B)</p> Signup and view all the answers

Flashcards

Introduction

An introductory section setting the context and establishing foundational concepts.

Environmental Science

The study of the interactions between living organisms and the environment.

Thinking Environmentally

The ability to understand and evaluate information, solve problems, and make informed decisions.

K/U (Knowledge and Understanding)

Knowledge and understanding of facts, concepts, and theories related to environmental science.

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A (Application)

The ability to analyze and interpret information, data, and evidence.

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T/I (Thinking and Inquiry)

The ability to synthesize information, evaluate perspectives, and formulate solutions.

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C (Communication)

The ability to create, design, and implement solutions to environmental problems.

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Final Examination

A set of questions or tasks designed to assess understanding and knowledge in a specific subject area.

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Soil Texture Triangle

A soil texture triangle is a diagram used to determine the soil texture class based on the percentages of sand, silt, and clay.

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Determining Soil Texture Class

The soil texture class is determined by the percentages of sand, silt, and clay in the soil. Using a soil texture triangle, locate the point where the three percentages intersect. The section where the point falls represents the soil texture class.

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Soil Texture Analysis

The proportions of sand, silt, and clay in a soil sample can be determined using a soil texture triangle.

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Fertilizer NPK Ratio

The nitrogen-phosphorus-potassium (NPK) ratio on a fertilizer bag indicates the percentage of each nutrient present. NPK values represent the mass fraction of each nutrient per unit mass of fertilizer.

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Air Pollutants

Air pollutants are substances released into the atmosphere that can harm human health or the environment. Examples include carbon monoxide, smog, and particulate matter.

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Albedo effect

The ability of a surface to reflect sunlight. Higher albedo surfaces reflect more sunlight, while lower albedo surfaces absorb more sunlight.

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Positive feedback loop

A process where a change in one component of a system leads to further changes in the same direction. They amplify the initial change.

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Negative feedback loop

A process where a change in one component of a system leads to changes in the opposite direction, bringing the system back to equilibrium. They dampen the initial change.

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Greenhouse gases

Gases in the atmosphere that trap heat from the sun, warming the planet. Examples include carbon dioxide, methane, and nitrous oxide.

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Natural greenhouse gas effect

The natural process by which greenhouse gases in the atmosphere trap heat from the sun, keeping the Earth warm enough to support life. This is essential for life on Earth.

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Enhanced greenhouse gas effect

The enhanced greenhouse effect is caused by human activities that release large amounts of greenhouse gases into the atmosphere, leading to increased warming and climate change.

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Natural capital

The total value of all natural assets, including resources like air, water, soil, living organisms, and ecosystems. These assets provide vital services to humans.

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Ecosystem services

Benefits that humans derive from ecosystems, such as clean air, water, pollination, food, and climate regulation. They are essential for human well-being and often have economic value.

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What is a cell in a landfill?

A layer of waste material in a landfill, typically separated by a layer of soil or clay.

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What is leachate?

Liquid that forms when water percolates through waste in a landfill, collecting dissolved and suspended substances.

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How is leachate prevented from leaking?

A system of pipes and barriers that collects leachate and prevents it from reaching the soil.

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What are microplastics?

Microscopic plastic particles found in various environments, posing potential risks to ecosystems and human health.

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What is the compost food web?

A network of organisms that interact within a compost pile, breaking down organic matter.

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Why are microbes important in composting?

Microorganisms are essential for breaking down organic matter into compost, releasing nutrients and improving soil health.

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What is a waste diversion technique?

Methods like recycling, composting, and waste reduction that divert waste from landfills.

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Define renewable energy and give examples.

Energy sources that are naturally replenished, like solar, wind, and hydro power.

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Single Tree Selection

A sustainable forestry method where individual trees are removed, ensuring diverse ages and species for continuous cover.

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Uneven-aged Forest Structure

A type of forest management that maintains a variety of tree ages and species, promoting biodiversity and long-term forest health.

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Ecological Integrity

The degree to which a forest is protected from human disturbances, preserving its natural functions and ecological balance.

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Endocrine Disruptors

Substances that disrupt hormone systems in organisms, potentially causing developmental, reproductive, and health problems.

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Microplastics

Microscopic plastic particles that persist in the environment, posing risks to human and ecosystem health.

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Biomagnification

The process by which toxic chemicals accumulate in the bodies of organisms, increasing in concentration as they move up the food chain.

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Nonpoint Source Pollution

Pollution from sources that are dispersed and difficult to identify, such as runoff from agricultural fields or urban areas.

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Point Source Pollution

The discharge of pollutants from a specific identifiable source, such as a factory or sewage treatment plant.

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Photochemical smog

A type of smog that is formed when sunlight reacts with pollutants like nitrogen oxides and volatile organic compounds (VOCs). The reaction creates ozone and other harmful chemicals.

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Secondary pollutant

Substances that are not directly emitted but are formed in the atmosphere through chemical reactions between primary pollutants and other atmospheric components.

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Greenhouse Effect

The natural process by which certain gases in the atmosphere trap heat, keeping the Earth warm enough for life.

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Causes of extinction

Any factor that can lead to the complete disappearance of a species from Earth.

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Fracking

A process used to extract natural gas from underground rock formations by injecting high-pressure fluid.

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Wind Energy

A type of renewable energy that harnesses the movement of air.

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Regenerative Agriculture

A set of farming practices that aim to improve soil health, enhance biodiversity, and increase resilience.

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Study Notes

Exam Information

  • Exam Title: Final Examination Review - Grade 11 Environmental Science (SVN 3MI)
  • Exam Date: January 23rd, 2025
  • Exam Duration: 1.5 hours
  • Total Marks: 75
  • Total Pages: 8
  • Teacher: Ms. Sulej
  • Exam Worth: 20% of final grade

Exam Materials

  • Materials Required: Scientific calculator, pencil, eraser
  • Materials Prohibited: Personal Electronic Devices (PEDs), graphing and programmable calculators, smart watches, phones

Exam Instructions

  • Put belongings at the front of the room
  • Do not start until instructed
  • Ensure there are 8 pages in the booklet
  • Put initials on all papers
  • Keep pens, pencils, and erasers on desk; other items away
  • Calculators without covers
  • Hand in all pages
  • Answer all multiple choice by writing correct letter, erase if revised
  • Attempt all questions; leave no questions blank
  • Show all work
  • Do not spend too much time on any one question

Exam Format Breakdown

  • Multiple Choice (K/U): 25 marks, 25 minutes
  • Diagram or Data Interpretation (A): 20 marks, 25 minutes
  • Solutions Short Answer (T/I): 20 marks, 25 minutes
  • Long Answer (C): 10 marks, 15 minutes

Review by Unit Information

  • (Unit 1: Thinking Environmentally; Unit 2: Environment and Human Health; Unit 3: Sustainable Forestry & Agriculture; Unit 4: Reducing and Managing Waste; Unit 5: Conservation of Energy)*
  • Includes questions about the concepts of environmental science, climate change, environmental economics, biodiversity crisis, conservation techniques, pollution, bioaccumulation/biomagnification, air quality, water quality, wastewater treatment, acid rain, built environment and smog, soil quality, silviculture basics, issues in Canadian forestry, anatomy of a landfill, microplastics, compost ecology, waste diversion techniques, energy sources, and various other topics.

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CTA SVN3M Environmental Science Past Paper PDF 2024-2025

Description

Prepare for your Grade 11 Environmental Science final exam with this comprehensive review quiz. Covering key concepts and topics, the quiz will help you assess your understanding and readiness. Make sure to review all materials and follow the exam instructions for optimal performance.

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