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Q: Land degradation
A: Landnam - Viking Farm Settlement Practices in Greenland and Iceland

The direct transplant of inappropriate farming methods is widely considered responsible for the environmental degradation of Iceland and, to a lesser degree, Greenland. Recent assessments of the environmental damage in Iceland indicate that at least 40% of the top soil... 
A: What Is Land Degradation
Land degradation is a concept in which the value of the biophysical environment is affected by one or more combination of human induced processes acting upon 
A: Natural Resources and Environment: Land Degradation Assessme
Land degradation: is the reduction in the capacity of the land to provide ecosystem goods and services and assure its functions over a period of time 

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Types of water pollution There are many types of water pollution because water comes from many sources. Here are a few types of water pollution: 1. Nutrients Pollution Some wastewater, fertilizers and sewage contain high levels of nutrients. If they end up in water bodies, they encourage algae and weed growth in the water. This will make the water undrinkable, and even clog filters. Too much algae will also use up all the oxygen in the water, and other water organisms in the water will die out of oxygen from starvation. 2. Surface water pollution Surface water includes natural water found on the earth's surface, like rivers, lakes, lagoons and oceans. Hazardous substances coming into contact with this surface water, dissolving or mixing physically with the water can be called surface water pollution. 3. Oxygen Depleting Water bodies have micro-organisms. These include aerobic and anaerobic organisms. When to much biodegradable matter (things that easily decay) end up in wat...
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