What is the main source of energy for life on Earth? A. Wind B. Water C. Sun D. Earth 相关知识点: 试题来源: 解析 C。地球上生命的主要能量来源是太阳。选项 C 正确。选项 A“Wind”风不是主要能量来源;选项 B“Water”水不是能量来源;选项 D“Earth”地球本身不是能量来源。反馈 收藏 ...
Wind power is energy, such as electricity, that is generated directly from the wind. It is considered a renewable energy source because there is always wind on the Earth and we aren't 1 the wind when we make energy from it. Wind power also does not cause pollution. ...
What is the main source of energy for most ecosystems? A. Wind B. Water C. Sun D. Soil 相关知识点: 试题来源: 解析 C。解析:对于大多数生态系统来说,太阳是主要的能量来源。风能、水能、土壤都不是主要的能量来源,植物通过光合作用将太阳能转化为化学能,然后沿着食物链传递。
What is the energy source of this so-called solar-sail vehicle A. Sunlight. B. Nuclear. C. Wind. D. Electricity. 相关知识点: 试题来源: 解析 A 该题问:被称为太阳飞行器的能源是什么?A项意为“太阳光”,为正确选项,可从本文第二段的第一句话中得知a multicasted spacecraft that will use...
B. It is not a sustainable source of energy. C. It helps to reduce air pollution. D. It is only available in a few areas. 相关知识点: 试题来源: 解析 C。原因:文章中提到“Wind energy is one of the cleanest and most sustainable sources of energy. It does not produce any harmful ...
A. Wind energy B. Solar energy C. Nuclear energy D. Hydro E. nergy 相关知识点: 试题来源: 解析 B。地球上生命的主要能量来源是太阳能(Solar energy)。选项 A 风能不是主要的;选项 C 核能不是生命的主要能量来源;选项 D 水能也不是主要的。反馈...
【题目】What is wind power?Wind power is energy, such as electricity, that isgenerated directly from the wind. It is considered arenewable energy source because there is always windon the Earth and we aren't __1_ the wind when we make energy from it. Wind power also does not cause ...
The cost of wind energy has gradually fallen, as technology has improved, however, wind energy still requires subsidization almost everywhere. Lower cost wind technology will induce increased demand. The clear intent of large developing countries like China and India is to bring cutting edge new ...
New energy sources are clean and renewable. Wind power is a kind of new energy. What is another new energy source? A. Coal B. Oil C. Solar power D. Natural gas 相关知识点: 试题来源: 解析 C。解析:选项 A 煤炭、选项 B 石油和选项 D 天然气都不是新能源,它们是传统能源,会造成环境污染...
Wind energy is a clean and renewable energy source. What measure can be taken to improve the power generation efficiency of wind turbines? A. Reducing the height of wind turbines B. Using smaller blades C. Installing wind turbines in areas with low - speed wind D. Regular maintenance and ...