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EMS Topic 2 Develop An Understanding of Environment Problems - Coggle…
EMS Topic 2 Develop An Understanding of Environment Problems
Introduction
Waste water is recycled and treated to conserve water supplies
Lost 20-30% original mangrove area
SG has 0.1 cubic miles of water, 4% for farming and 51% for industrial
pollution from oil industry and SG produced 7.7 million solid waste
inadequate supply of water to meet demand of Singaporean
Climate Change
Occur due to increase in temperature and burning of fossil fuel and release of harmful gases
Harmful effect such as melting of polar ice, change of seasons, frequent occurrence of disasters and unpredictable weather pattern
Caused by global warming
Pressing and Important Global Environmental Problems
Acidification
Deposition usually through precipitation
Precipitation disrupts ecosystem nutrient flows
Acid precipitation lower soil and water pH
May harm living things that dependent toward neutral or alkaline condition
Afforestation
Planting trees and plants on agricultural sapce
Reforestation involve replanting tree on areas that is damaged by fire
Asbestos
A soft fibrous mineral used in fireproofing material
Can cause cancer in particulate form
Biodiversity
Biological diversity
Diverse in form and function, genetic, organism, community and ecosystem
Refer to variety of species
Loss of biodiversity reduces ecosystem ability to recover man-induced disruption
Carbon Cycle
Refers to the cycle of carbon ( etc. Carbon dioxide) between the atmosphere, ocean, terrestrial biosphere and geological deposits
Catchments
Assemblages used to retain rain water an runoff
An important water management technique used in area with limited water resource such as
Gibraltar
Deforestation
Eg. Unsustainable forestry practices, land clearing and cutting down of tree without planting new growth
Destruction to forest area
Desertification
Spread of desert-like condition in arid areas
Due to overgrazing, loss of agriculturally productive soils
Dredging
Used for collection marine organism such as shellfish and coral
Cause significant destruction to reef and ocean floor ecosystem
Practice of digging to the bottom of water bodies