Explain effects of human activity on our environment. [5 MARKS]
Each point: 1 Mark
1. Human activities like agriculture has following effect- climate change, deforestation, introduction of foreign and invasive species, genetic engineering change in biodiversity, irrigation problems, pollutants, soil degradation, and waste.
2. Irrigation causes downstream water of river to reduce, increase in evaporation and ground water table also causes flood at some places and draught at others.
3. The environmental impact of fishing is overfishing and loss of biodiversity.
4. Usage of fossil fuels, coal mining, nuclear or hydro electricity production causes air, land and water pollution.
5. Manufacturing industries like paper, plastics, dyes, leathers, electronics causes air, land and water pollution.
Common effects include decreased water quality, increased pollution and greenhouse gas emissions, depletion of natural resources and contribution to global climate change.