Download - Man and Environment
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Man &
Environment Presented by
Sehar Mangi (B.Ed. II) Sukkur IBA
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1) Human beings depend on the environment
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From biological perspective
Biotic (living) components cannot survive in isolation, They must interact with physical or abiotic (non-living) environments.
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Human life depend on:• Temperature• Shelter• Natural resources = substances and energy sources
needed for survival• Renewable natural resources: can be replenished– Perpetually renewed: sunlight, wind, wave energy– Renew themselves over short periods: timber, water,
soil• Nonrenewable natural resources: unavailable after
depletion– These can be destroyed– Oil, coal, minerals
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• Ecosystem services: arise from the normal functioning of natural services– Purify air and water, cycle nutrients, regulate climate– Pollinate plants, receive and recycle wastes
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Human degrade ecosystem services and create a environmental problem
By depleting resources, destroying habitat, generating pollution
Increased human affluence has intensified degradation
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2) Human being need to adopt & modify environment
• Don’t disturb the nature • Conserve water• Conserve energy• Grow more trees• Recycle the wastage• Ban the polythene• Use renewable resources• Save electricity• Reduce the toxic waste• Decrease usage rate of vehicles
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3) Factors which affects on the climate and weather of Pakistan
• As Pakistan has, it's latitude and longitude is about 30 N and 70 E which makes it temperature fairly warm.
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• Deforestation• Establishment of waters Dams• Disturbing the way of river• Geographical position• Melting of glaciers• Environmental pollution• Usage of harmful technologies e. g.
Drone Attacks, Booms, Machine Guns etc. • Solar Radiations• Flood, Earth quack, • Lack of proper place for wastage of factories
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Conclusion
“Humanity is dependent upon an earth incapable of supporting infinite demands, and capable both of being improved and of being damaged by the way in which it is used”
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References• Sindh Text book of Science (Grade 6)• Sindh Text book of Pak-Study (Grade 9)• Biology book of Faridi (Grade 9)
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