Term
| What was Earth's human population in 2000? |
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Definition
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Term
| What has happened to the human population over the past 200 years? |
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Definition
| Grown steeper after 1950 people living longer as well as more babies being born |
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Term
| How would the Earth’s carrying capacity affect the growth? |
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Definition
| The population will continue to grow, threatening the limit of Earth’s carrying capacity. Population will level off due to carrying capacity. |
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Term
| What problems with destroying solid waste do landfills avoid? |
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Definition
| The release of dangerous gases into the air as well as harmful chemicals into the ground. |
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Term
| What are some drawbacks of landfills? |
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Definition
They take up a lot of space.
Smells |
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Term
| What is a natural resource? Give examples |
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Definition
| Any type of material or energy that humans use to meet their needs (water, food, stone, metal, minerals). |
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Term
| What are four pressures placed on ecosystems by an increasing human population? |
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Definition
1. Waste disposal (amount of waste produced)
3.Resources (depending on certain things in the environment)
4.Urban Growth (large # of people in small area changes landscape. Can no longer support the # of people living there)
4. Expanding Land Use (loss of habitat--natural habitats (like forests) are being destroyed---greater need for vehicles which decreases air quality) |
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Term
| How can sharing resources be difficult? |
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Definition
| As the human population grows resources may become scarce and people may compete for them. Some resources are found in more than one country. |
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Term
| Describe population density. |
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Definition
| The measure of the number of people in a given area |
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