why solar energy is used in countries with lots of sun.how we get solar energy and what it can be used for.why large cities use lots o electricity. 相关知识点: 试题来源: 解析 怎样使用太阳能为建筑物供暖和为发动机提供动力为什么阳光充沛的国家使用太阳能怎样获取太阳能以及太阳能的用途为什么大...
首先,文章开篇引出主题 “太阳能的利弊:揭示”(Pluses and Minuses of Solar Energy: Revealed)。B 部分介绍了太阳能的来源,即来自太阳的射线,且这些射线主要由大量放射性波组成。同时提到太阳能在被捕获后会转化为多种其他形式的能量,用于不同的应用。C 部分指出在任何特定时间落在地球表面的太阳能量中,约 70%...
Advantage of solar energy : Solar energy is eco-friendly which does not create pollution. It is boundless source. Disadvantage of solar energy : Soalr energy is avilable only when sun is in the sky. Therefore, it has to be stored in batteries.
These are examples of ancient uses of solar energy, but the technology used to capture the sun’s energy today didn’t come about until 1839. Edmond Becquerel was a 19-year-old French physicist credited with discovering the photovoltaic effect. He found that photovoltaics created an electric cur...
The solar energy should be collected as close as possible to the source where it will be used. The 48,000 watt-hours are the total heat that escapes into the house from these extraneous sources in a day, an average of 2.0 kW, all the time. It is this heat that accounts for a 3掳...
Solar energy is radiant energy emitted from the sun composed of photons (light) and radiation (heat). We use this energy in multiple ways, including converting photons from the sun into electricity via photovoltaics. As NASA defines it, the photoelectric effect causes some materials to absorb pho...
This fluid is stored in two tanks, one at a low temperature and one at a high temperature. Solar energy is used to heat up the fluid in the low temperature tank, which then flows into the insulated high temperature tank for storage. When energy is needed, the fluid in the high ...
A: Solar energy is cheap because the sun's rays are free. The only cost is the cost of the solar cell.However solar cells need lots of sunlight so they can only be used in countries that get a lot of sun.Q: Why isn't solar energy used more if it is so cheap? A: Apart from...
解析 【答案】Harvesting【核心短语/词汇】solarenergy太阳能;meetthegrowingdemandfor满足日益增长的需求【翻译】获取太阳能以满足日益增长的能源需求。【解析】本题考查非谓语动词,这里空白处要与太阳能构成短语,表获取能源,在句中作目的状语,…solarenergy获取太阳能,要用ing形式,harvesting获取,故答案是Harvesting。
How Free Is Solar Energy ?Tech, Green