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9th ENV Chap 9.2
9th ENV Chap 9.2 CHANGING POPULATION TRENDS
| Question | Answer |
|---|---|
| GROWTH | Thorughout history, are currently in many parts of the world, populations that have high rates of ______ create environmental problems. |
| OVERWHELM | A rapidly growing population uses resources at an increased rate and can ________ the infrastructure of a community. |
| INFRASTRUCTURE | _________ is the basic facilities of a country or region, such as roads, bridges, sewers, power plants, subways, schools, and hospitals. |
| RAPIDLY | A _______ growing populations can use resources faster than the environment can renew them, unless resources come from elsewhere. |
| WATER | Standards of living decline when wood is removed from local forests faster that it can grow back, or when wastes overwhelm local ____ sources. |
| SYMPTOMS | ________ of overwhelming populations include suburban sprawl, polluted rivers, barren land, inadequate housing, and overcrowded schools. |
| WOOD | In many of the poorest countries, ____ is the main fuel source. |
| FUEL | When populations are stable, people use fallen tree limbs for ____. When populations grow rapidly, deadwood does not accumulate fast enough to provide enough fuel. |
| CUTTING | People then begin ______ down living trees, which reproduces the amount of wood available ineach new year. |
| BOIL | A supply of fuel ensures that a person can _____ water and cook food. |
| NOT SAFE | In many parts of the world, water taken directly from wells is __ _____ to drink. Food is often unsafe to eat unless it is cooked. |
| DISEASE | Water can be sterilized, and food can be cooked, but fuel is need to do so. Without enough fuel wood, many people suffer from ______ and malnutrition. |
| SEWAGE | In places that lack infrastructure, the local water supply may be used not only for drinking and washing but also for ______ disposal. |
| DISEASES | As a result, the water supply becomes a breeding ground for organisms that can cause __________ such as dysentery, typhoid, and cholera. |
| DOUBLING | Many cities have populations that are _______ every 15 years, and water systems cannot be expanded fast enough to keep up with this growth. |
| SHORTAGE | Growing populations may have a _________ of arable land. |
| EGYPT | For example, ___ has a population of more than 69 million that depends on farming within the narrow Nile River valley |
| 4 PERCENT | Most of the country is desert, and less than __ _______ of Egypt's land is arable land. |
| HOUSING | The Nile River Vally is also where the jobs are located, are located, and where most Egyptians live. They continue to build _____ on what was once farmland, which reduces Egypt's available arable land. |
| URBANIZATION | ___________ is an increase in the ratio or density of people living in urban areas rather than in rural areas. |
| SURBAN | People often find work in the cities but move into _________ areas around the cities. |
| NOT | ___ every country in the world is progressing through each stage of demographic transition. |
| FOCUS | In recent years, the international community has begun to _____ on the least developed countries. |
| FERTILITY RATES | Countries such as China, and India have created campings to reduce the ___ _______ of their citizens. |
| CAMPAIGNS | These ____________ include public advertising , family planning programs, economic incentives, or legal punishment. |
| 1994 | In ____, the United Nations held the International Conference on population and Development. |
| DEBATES | It involved ________ about the relationships between population, development, and the environment. |
Created by:
asimien907
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