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Human Dependence
test review
| Question | Answer |
|---|---|
| What are natural resources? | anything created naturally on Earth that humans use |
| What are examples of natural resources? | water, coal, sunlight, oil |
| What are nonrenewable resources? | resources that cannot be replaced in a lifetime |
| What are renewable resources? | resources that can be replaced in a lifetime |
| What are examples of nonrenewable resources? | coal, gasoline, natural gas |
| What are examples of renewable resources? | trees, oxygen, fish, water |
| What is alternative energy? | type of energy that does not use fossil fuels and is environmentally friendly |
| Why can't nonrenewable resources be replaced? | the process takes too long |
| What does it mean to conserve resources? | to use resources wisely or save them |
| How does coal form? | vegetation (plants) are buried quickly and a fast rate and it takes millions of years |
| Find the negative resource use. | Oil is taken from the ground and burned for fuel. |
| Find the positive resource use. | Fresh water is used for growing crops. |
| What needs to happen for metal ores to be created? | the area had to have volcanoes there long ago |
| What is a potential hazard of collecting fresh water? | Animals poop in the water, and there is litter in the water. |
| Why is mining for coal bad? | It destroys habitats. |
| Why is burning coal bad? | It releases dangerous gases. |
| What is a synthetic material? | a resource that is created through a chemical process and does not form naturally |
| How do we use geothermal heating? | heat from the melted rock below Earth's surface |
| Find the alternative energy sources. | wind, solar, geothermal |
| What is a problem with using geothermal heating? | some areas do not have good geothermal resources/reservoirs |
| What is a problem with using solar energy? | when the sun isn't out, we have an issue |
| What is a problem with using wind energy? | you need consistent winds |