Presentation on theme: "Strands a. Explain how water pollution and the unequal distribution of water impacts irrigation, trade, industry, and drinking water. b. Explain the relationship."— Presentation transcript:
1SS7G2 The student will discuss environmental issues across the continent of Africa.
2Strandsa. Explain how water pollution and the unequal distribution of water impacts irrigation, trade, industry, and drinking water.b. Explain the relationship between poor soil and deforestation in Sub-Saharan Africa.c. Explain the impact of desertification on the environment of Africa from the Sahel to the rainforest.
4The largest cause of water pollution in Africa is from human activity. Bathing, washing and defecating in the water produces pollution in the water. Other acts such as mining, industry and the damming of water ways have also produced water pollution.
5Africa faces huge challenges with multiple issues that adversely affect public health. Water PollutionUnequal distribution of Water
6Africa's WaterMany countries in Africa do not have enough clean water even though they have large rivers!!!!Why??? Because of the contamination of the water sources that they do have or not being close enough to fresh water sources
7SS7G2b. Explain the relationship between poor soil and deforestation in Sub-Saharan Africa.c Explain the impact of desertification on the environment of Africa from the Sahel to the rainforest
8Deforestation Vs Desertification Deforestation is the clearance or the removal of a forest accelerating into the remaining areas of undisturbed forest, and the quality of the remaining forests is declining.Desertification is the degradation of land in arid or semiarid regions caused by climatic changes, human influence, or both.
9Deforestation in Africa As a result of deforestation and desertification in the Sahel Region, that why its becoming and expanding desert. The Sahel was once believed to be very good farm land
10Why Deforestation?Deforestation is typically done to make more land available for housing and urbanization, timber, large scale cash crops such as soy and palm oil, and cattle ranching.
11Effects of Deforestation Loss of Species:Soil Erosion
12Effects of Deforestation Cont.. Life Quality: Soil erosion can also lead to silt entering the lakes, streams, and other water sources. This can decrease local water quality, contributing to poor health in the local population.
13What Causes Desertification? OvergrazingDestruction of plants in dry regions is causing desertification to occur. People are cutting down tress to use them as a source of fuel. Once all these trees are cut down there is nothing to protect the soil. Therefore, it turns to dust and is blown away by the wind.
14The Effects Of Desertification Soil becomes less usableVegetation is Lacked or DamagedFood LossCauses Famine