❓What are the harmful effects vanishing of hills ?
❓കുന്നുകൾ ഇല്ലാതാകുന്നതുകൊണ്ട് എന്തെല്ലാം ദോഷങ്ങളുണ്ട് ?
- The organisms on the hill lose their home
- Plants perish
- Streams dry
- Water scarcity occurs
- Natural calamities occur.
❓ What are the human activities that are harmful to the ecosystem?
- Demolition of hill
- Excessive use of pesticides
- Deforestation
- Field filling
- Disposal of plastic waste
- Destruction of the hill
- Sandmining
❓What are the waste materials found in your home and
surroundings?
നിങ്ങളുടെ വീട്ടിലും പരിസരപ്രദേശങ്ങളിലും കാണുന്ന മാലിന്യങ്ങൾ എന്തെല്ലാം ?
- Vegetable waste
- plastic cover
- Footwear
- Plastic bottles
- Used clothes
- Paper
- Toothpaste tube
- Damaged CFL
- Fruit peel
❓ Discuss and write about those activities which pollute
the soil.
- Excessive use of pesticides in farms
- Excessive use of chemical fertilisers
- Spillage of chemical substance
- Unscientific agricultural practices
❓ How dose soil pollution affect the ecosystem?
- Soil pollution destroys the natural structure and fertility of the soil
- Soil pollution is harmful to useful creatures like earthworms.
❓ What are the other factors which get polluted like this in
our surroundings?
- Air
- Water
❓Observe the pictures and find out the situations of air
pollution.
❓ ചിത്രങ്ങൾ നിരീക്ഷിച്ച് വായുമലിനീകരണ സന്ദര്ഭങ്ങൾ എന്തെല്ലാമെന്ന് കണ്ടെത്തൂ.
- Burning of waste including plastics
- Burning of fossil fuels
- Smoke emitted from vehicles
- Wildfires
- Mining
- Burning firewood
- Use of fireworks
- Smoke from industries
- Construction activities
- Volcanic eruption
❓Discuss and write down the harmful effects of air
pollution
- Air pollution can have harmful effects on our health
- Every year , about 7 million people die in the world due to various diseases caused by air pollution
- Air pollution can have a harmful effect not only on humans but also on plants and animals
- Harmful effects of air pollution are declining crop yields acid rain , global warming , ozone depletion etc.
❓In which circumstances does water get polluted ?
❓ജലം മലിനമാകുന്ന സാഹചര്യങ്ങൾ എന്തെല്ലാമാണ് ?
- Plastic waste reaching water bodies
- Spillage of chemical substances
- Water from sewage
- Throwing organic wastes into water sources.
- Washing vehicles and bathing cattle in the river
- Dumping waste from factories
- Spraying pesticides in agricultural fields
❓ How does water pollution affect living things and
humans ?
- Drinking water get polluted
- Decrease in the level of oxygen in water
- Causes various waterborne diseases like cholera, typhoid and jaundice
- Destroyed ecosystems
- Chemicals that flow into water also pollute the soil
❓Which all natural disasters do you know ? Find and write
them down.
- Landslide
- Earthquake
- Forrest fire
- Flood
- Storm
- Tsunami
- Volcanic eruption
❓What precautions should be taken if a flood warning is
received ?
- People residing along river banks should move to higher ground as fast as they can.
- Do not step into rivers in torrential rain.
- Disconnect the electricity if water enters your home.
❓How do the harmful activities of man affect an
ecosystem?
- Deforestation
- Field filling
- Disposal of plastic waste
- Destruction of the hill
- Sandmining
- Excessive use of pesticides
❓What are the activities that we can do to protect our
environment ?
- Make a medicinal plant garden
- Gardening
- Biodiversity park
- Conservation of water
- Cleaning environment
- Creating environmental awareness
- Reduce the use of plastic materials
- Making posters and leaflets
- The use of paper bags and ink pens
- Creating awareness by preparing posters and leaflets
- Afforestation
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