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Questions and Answers
What does eutrophication mean?
What does eutrophication mean?
- Filling up of water body with aquatic due to extra nourishment (correct)
- Thermal change in water
- Solid waste
- Excessive growth of algae in water bodies
What does biochemical oxygen demand (BOD) mean?
What does biochemical oxygen demand (BOD) mean?
- Air pollution
- Industrial pollution
- Polluting capacity of effluent
- Dissolved O2 needed by microbes to decompose organic waste (correct)
What are the main components of photochemical smog?
What are the main components of photochemical smog?
- Water vapour
- Sulphur dioxide
- Carbon monoxide
- Oxides of nitrogen (correct)
What does deforestation generally decrease?
What does deforestation generally decrease?
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What does the term Alpha diversity refer to?
What does the term Alpha diversity refer to?
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Study Notes
Eutrophication and Water Pollution
- Eutrophication is a process where excess nutrients, such as nitrogen and phosphorus, accumulate in water bodies, promoting excessive plant growth and depleting oxygen levels, leading to aquatic life death.
Biochemical Oxygen Demand (BOD)
- Biochemical oxygen demand (BOD) measures the amount of dissolved oxygen required by microorganisms to break down organic matter in water, indicating water quality.
Photochemical Smog
- The main components of photochemical smog are nitrogen oxides, volatile organic compounds, and ozone, which react in the presence of sunlight to form a toxic mixture of air pollutants.
Deforestation
- Deforestation generally decreases biodiversity, as it leads to the loss of habitats, extinction of species, and disruption of ecosystem services.
Alpha Diversity
- Alpha diversity refers to the variety of different species present within a specific geographic area or ecosystem, highlighting the richness of species in a local community.
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