Podcast
Questions and Answers
How does deforestation contribute to water-related environmental issues?
How does deforestation contribute to water-related environmental issues?
- It leads to decreased rainfall and increased drought.
- It reduces the amount of water available for industrial use.
- It directly causes thermal pollution in nearby water bodies.
- It increases soil erosion, leading to muddier rivers and potential habitat destruction. (correct)
What is the primary cause of eutrophication in water systems?
What is the primary cause of eutrophication in water systems?
- The accumulation of plastic waste.
- Excessive nutrients from fertilizers and other sources. (correct)
- Oil spills blocking sunlight.
- The release of hot water from factories.
Which of the following best describes how thermal pollution impacts aquatic ecosystems?
Which of the following best describes how thermal pollution impacts aquatic ecosystems?
- It increases the acidity of the water, damaging coral reefs.
- It reduces the oxygen levels in the water, harming aquatic organisms. (correct)
- It introduces toxic chemicals that poison marine life.
- It causes algal blooms that block sunlight.
How do oil spills primarily affect marine ecosystems?
How do oil spills primarily affect marine ecosystems?
What is the role of the sun's heat in the water cycle?
What is the role of the sun's heat in the water cycle?
Why is 'water in trade' essential for global commerce?
Why is 'water in trade' essential for global commerce?
Which sector is the largest consumer of freshwater resources?
Which sector is the largest consumer of freshwater resources?
How does overusing groundwater lead to desertification?
How does overusing groundwater lead to desertification?
Which of the following is a direct consequence of plastic pollution in marine environments?
Which of the following is a direct consequence of plastic pollution in marine environments?
How do excess nutrients from human activities contribute to red tide events?
How do excess nutrients from human activities contribute to red tide events?
Flashcards
Water Coverage
Water Coverage
Water covers 71% of Earth's surface.
Largest Water Body
Largest Water Body
Oceans and seas hold 97% of Earth's water. This water contains salt.
Agricultural Pollution
Agricultural Pollution
Excess fertilizers and pesticides washing into water, leading to eutrophication.
Eutrophication
Eutrophication
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Deforestation & Water
Deforestation & Water
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Red Tide Definition
Red Tide Definition
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Human Activities & Red Tide
Human Activities & Red Tide
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Water Usage by Sector
Water Usage by Sector
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Preventing Desertification
Preventing Desertification
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Groundwater Overuse
Groundwater Overuse
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Study Notes
- Water covers 71% of Earth's surface and is essential for life.
- Oceans and seas constitute the largest water body, holding 97% of Earth's water as saltwater.
- Glaciers and ice caps store most of the Earth's freshwater, approximately 2% of the total water.
- The sun's heat drives the water cycle, causing evaporation.
- Condensation is when water vapor cools and forms droplets, creating clouds.
- Infiltration occurs as water seeps into the ground, replenishing aquifers.
- Only 3% of Earth's water is freshwater, with the majority being frozen.
- Agricultural pollution happens when excess fertilizers and pesticides wash into water, and this leads to eutrophication.
- Factories cause thermal pollution when they release hot water into rivers, reducing oxygen levels.
- Oil spills block sunlight and oxygen, harming marine life.
- Plastic pollution kills marine animals that mistake plastic for food.
- Eutrophication is when excess nutrients cause algal blooms, which deplete oxygen.
- Agriculture, factories, and mining are industries that pollute water bodies.
- Pollution can be prevented by using eco-friendly products.
- Deforestation increases soil erosion, muddying rivers.
- Red tide, also known as Harmful Algal Bloom (HAB), occurs due to excess algae growth.
- Excess nutrients from runoff and pollution trigger algal blooms, causing red tide.
- Algal blooms release toxins that kill fish and other marine animals, impacting marine life.
- Dumping fertilizers into water worsens algal growth.
- Red tide causes respiratory issues and skin irritation in humans.
- Fishing and coastal tourism suffer economically due to contaminated seafood and dead zones because of red tide.
- Reducing fertilizer use and industrial waste is imperative to prevent Red Tide.
- Agriculture is the largest consumer of freshwater.
- Water powers hydroelectric plants, generating electricity.
- Water regulates body temperature and helps digestion.
- Clean water prevents diseases and ensures sanitation.
- Water is used in steel, textiles, and paper production in industry.
- Water prevents soil erosion and supports plant life, preventing desertification.
- Oceans and rivers are essential for global trade.
- Excess groundwater use reduces water tables and increases desertification.
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