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ICSE Class 10 Population and Pollution — practice questions — page 2

Explore 100 free Population and Pollution questions in ICSE Class 10 Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Population and Pollution questions and exercises with answers

Showing questions 31–60 of 100.

How can people be exposed to contaminated soil?Read the answer and worked solution →How can soil contaminants enter the food chain?Read the answer and worked solution →Which water source can soil pollution contaminate?Read the answer and worked solution →What does bioremediation use to break down soil contaminants?Read the answer and worked solution →What can phytoremediation use to extract heavy metals?Read the answer and worked solution →Which organism does mycoremediation use to process pollutants?Read the answer and worked solution →What is one way to clean contaminated soil?Read the answer and worked solution →How can thermal remediation help treat soil?Read the answer and worked solution →Which route exposes people to vapour from soil contaminants?Read the answer and worked solution →Which description fits noise pollution?Read the answer and worked solution →Which is a major source of outdoor noise?Read the answer and worked solution →Which scale measures sound pressure level?Read the answer and worked solution →What kind of scale is the decibel scale?Read the answer and worked solution →Repeated exposure above about 85 dB raises risk of what?Read the answer and worked solution →Which body system may be affected by high environmental noise?Read the answer and worked solution →How can loud noise affect animal navigation?Read the answer and worked solution →Which barrier can help reduce ambient noise?Read the answer and worked solution →What can protect workers in loud environments?Read the answer and worked solution →How can roadway noise be reduced?Read the answer and worked solution →What do Buy Quiet initiatives encourage?Read the answer and worked solution →What does demography study?Read the answer and worked solution →Which processes change population size in demography?Read the answer and worked solution →What is population density?Read the answer and worked solution →How is arithmetic population density calculated?Read the answer and worked solution →A town has 600 people across 12 km². What is its density?Read the answer and worked solution →Which unit commonly expresses human population density?Read the answer and worked solution →How is crude birth rate usually expressed?Read the answer and worked solution →A crude death rate is defined by which annual count?Read the answer and worked solution →In a town of 20,000, 120 live births occur in one year. Find its crude birth rate.Read the answer and worked solution →A community of 20,000 records 80 deaths over a year. Find its crude death rate.Read the answer and worked solution →

Worked practice questions

How can people be exposed to contaminated soil?

  1. Direct contact with soil
  2. Drinking treated water
  3. Breathing clean air
  4. Listening to loud music
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Correct answer: A. Direct contact with soil

Direct contact with contaminated soil is one exposure route.

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How can soil contaminants enter the food chain?

  1. Eating crops from polluted soil
  2. Plants absorb only sunlight
  3. Sound passes through soil
  4. Clean rain irrigates plants
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Correct answer: A. Eating crops from polluted soil

People may be exposed by consuming plants that grew in contaminated soil.

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Which water source can soil pollution contaminate?

  1. Water vapour
  2. Cloud water only
  3. Groundwater
  4. Ocean spray only
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Correct answer: C. Groundwater

Soil contaminants can reach water supplies in groundwater and aquifers.

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