Kubayeva Zhanar Zhumabayevna
10 “A” grade
10 “A” grade
- What does ecology study?
- It studies our environment
- What does “environment” mean?
- All around us is our environment.
The word “ecology” came from the Greek which means “home”.
II. Insert
We should protect woods and forests.
We shouldn’t pollute the atmosphere on
the land or on the sea.
The people are faced with the problem of
the pollution of the environment.
We all should try to do our best in order
to make air, forests and soli cleaner
than before.
2. Human overpopulation. Most of the students ranked unchecked human population growth, which leads to overconsumption and associated world poverty, as their top culprit of environmental problems. Virtually every problem from 3 through 10 can be traced back to our simply having too many people for the resources available. Until political and religious leaders have the courage to realistically address the issue of birth control on a global scale, most of our environmental problems will worsen before they get better.
4. Water quality and quantity. Sewage from cities, unregulated releases from industrial and agricultural sites, and dumping of wastes in the oceans collectively exacerbate the worldwide problem of water pollution. Overuse of groundwater in many coastal regions leading to saltwater intrusion is a looming specter. Water wars are now a reality in the western states and even in the wetter Southeast, as evidenced in the court cases involving Alabama, Georgia, and Florida.
5. Threat of disease. Bird flu, West Nile virus, and mad cow disease are examples of how we could be affected overnight by unseen enemies, all a consequence of human overcrowding, overconsumption, and invasive species.
7. Air pollution. Uncontrolled releases by industry and the excessive use of fossil fuels have led to acid rain, dissolution of the ozone layer, smog, and the general elimination of "clean air."
8. Pollution of marine habitats. The oceans are huge, but overharvesting and the degradation of marine environments are proceeding at a steady rate around the world, including a commercially extinct codfish industry and disappearing coral reefs along our own coasts.
10. Invasive plants and animals. The problems resulting from fire ants, Burmese pythons in the Everglades, and many more regional environmental problems have a human origin related to the introduction of exotic species.
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