Control work

Ex.3. Answer the following questions.
What is this article about? Make your own comments on the article.
What are the main factors of ecosystem losses?
What are the direct impacts of damaged ecosystems on people?


Ex.4. Match the words from column A to column B
A B
alteration shortage
supply supervise
control change
disaster pollution
sustainable illness
vulnerability provide
excessive stable
contamination too much
deficiency risky
disease catastrophe


^{Ex.5. Look at the article and identify whether the given below statements are true or false}
1. Uzbekistan’s economy and security is heavily dependant on water resources. T/F
^{2. N}atural ecosystems don’t play important role in numerous ways in protecting both quality and availability of water supplies. T/F
3. Healthy ecosystems provide numerous local and national benefits ranging from erosion control, prevention or reduction of natural disasters (such as floods and landslides), to climatic amelioration and the potential for sustainable economic utilization. T/F
4. The most significant loss of ecosystem services in Uzbekistan, and the greatest natural disaster, is the loss of the Aral Sea and the Amudarya delta. T/F
5. The ecological impacts of the Aral Sea disaster have greatly increased the vulnerability of local populations to health problems. T/F
^6. Direct impacts of damaged ecosystems on people include increased ill-health due to wind blown salt and dust, excessive use of agro-chemicals, salinity of the soil, heavy salt concentration in potable water, contamination and chemical pollution. T/F
7. All these factors help immune system and eliminate mutations including cancers, kidney diseases, respiratory diseases. T/F
8. Such problems are more frequently registered in areas with favourable ecosystems. T/F
Ex.6. Discuss the text.