Pollution, Climate Change and Conservation — O/L Science

What must I remember about Pollution, Climate Change and Conservation?

• Greenhouse effect: CO₂, CH₄, N₂O, H₂O vapour trap infrared → warm Earth
• Enhanced greenhouse effect → global warming → climate change (floods, droughts, sea rise)
• Pollution types: air (SO₂, NOₓ, particulates), water (fertilisers, sewage), land (plastics, pesticides)
• Deforestation → less CO₂ absorbed; soil erosion; habitat loss

Test yourself (1 minute)

1. Acid rain

   SO₂ + H₂O → H₂SO₄; damages forests, lakes, buildings

2. Ozone layer

   absorbs UV; CFCs deplete it

3. Conservation

   biodiversity protection, reforestation, renewable energy, recycling

Practise Pollution, Climate Change and Conservation questions today

Must know

• Enhanced greenhouse effect → global warming → climate change

Source: NIE O/L Science — Unit 7: Environmental Science

What comes next?

Next in the syllabus

Where does Pollution, Climate Change and Conservation fit in the syllabus?

Grade 10 · Term 3