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Man's Impact on the Environment - Coggle Diagram
Man's Impact on the Environment
Land Pollution
Effects
Unpleasant smells
Non-biodegradable substances in rubbish remain as pollutants for many years
Chemicals found in rubbish could affect the organisms living at the area
Causes
Litter and rubbish
Human waste
Water Pollution
Effects
Oil spills or chemicals from factories dumped into water bodies could pollute the waters.
Oil spills block sunlight and oxygen from reaching the under surface of the water.
leading to
Aquatic plants not being able to carry out photosynthesis and release oxygen
Pesticides and fertilisers from farms could get into and pollute water bodies
Causes
Oil spills
Litter and rubbish
Human waste
Chemical waste
Air Pollution
Effects
Acid rain, which could come from large amounts of acidic gases in the smoke
leading to
Corrode materials and cause trees to die
Aquatic organisms (e.g. fish) would die when acid rain pollute the waters
Can cause breathing problems and eye irritation
Causes
Smoke from vehicles. (e.g. cars, trucks)
Smoke from factories
Haze -- tiny dry particles of things like dust that cannot be felt or seen individually with the naked eye.
Impacts
Negative Impacts
Deforestation
Pollution
Global Warming
Positive Impacts
Man-made materials that last longer than natural materials (e.g. plastic)
Better food quality and new water treatment technologies
Conservation of natural resources
(5R - Refuse, Reduce, Reuse, Repurpose, Recycle)
Reforestation
Deforestation (Impacts)
Removal of large sections of forests by cutting down or burning trees
Soil Erosion
Soil is directly exposed to wind and rain, which removes the top layer of the soil where most nutrients/mineral salts are found. Land becomes unstable for plants to grow in
Rain washes soil into water bodies and sunlight is blocked, unable to reach the aquatic plants. Hence, plants cannot carry out photosynthesis and die.
Loss of Living Things
Living things are killed when trees are burnt down
Living things lose their shelter and food source
Global Warming
Carbon dioxide traps heat and causes Earth's temperature to increase
When trees are burnt down, large amounts of carbon dioxide are released
Global Warming
Causes
Deforestation (less trees, less oxygen, more carbon dioxide)
Release of carbon dioxide (humans, vehicles, factories)
Effects
Increase of Earth's temperature
Rising sea levels
due to
Melting of ice bergs
Extreme weather conditions (e.g. floods or droughts)
Growth of plants affected
May lead to a shortage of food