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Renewable Energy
Quiz Feb. 10th
| Question | Answer |
|---|---|
| Why are some energy resources referred to as renewable? | These are energy resources that are renewed by nature, so we do not run out of them. |
| What is solar power AND what type of resource is it? | solar power is energy from the sun. it is a renewable resource because it is replaced by nature. |
| What is wind energy AND what do we use to harvest it? | Wind energy is a type of energy that we can harvest from the wind. The wind moves large turbines. |
| What does a hydroelectric dam do? | a hydroelectric dam converts energy of moving water to electricity. |
| What is geothermal energy AND how do we harvest it? | geothermal energy is energy from a heat source. we can harvest it from a geothermal power plant. |
| Where is the most solar energy available? | near the equator and in dryer climates that do not experience many cloudy days. |
| Is wind energy a popular energy source? | Yes, it is the fastest growing energy source in the world |
| What is a downside/cost to solar energy? | solar energy is expensive and there isn't a constant availability of sunlight |
| What is a downside/cost to hydroelectric energy? | change nearby habitats and migrations, must be close to moving water |
| What is a downside/cost to wind energy? | costs a lot of money, some people are concerned that large turbines threaten birds and spoil natural scenery. |
| What is a downside/cost to geothermal energy? | geothermal hot spots are not easily found |
| What are examples of biofuels? | biofuels include wood, grasses, coconut husks, and other plant-biased materials. |
| How are biofuels and fossil fuels the same? | biofuels and fossil fuels are both burned for energy. |
| What is a downside/cost to bioenergy? | The energy that goes into making these biofuels is often equal to or greater than the energy they yield. Also not much better for the atmosphere than burning fossil fuels. |
| What is active solar power? | active solar power when sunlight is captured by solar cells. |
| What is passive solar energy? | passive solar power is when sunlight passes through glass to hear a room or building. |
| True or False: Solar cells are more expensive now then they were years ago. | false |