百度试题 结果1 题目What is the source of energy for plants? A. Sunlight B. Water C. Soil D. Air 相关知识点: 试题来源: 解析 A。解析:植物通过光合作用利用太阳光作为能量来源。水、土壤和空气对植物生长很重要,但不是能量来源。反馈 收藏 ...
百度试题 结果1 题目What is the source of energy for plants? A. Sunlight B. Water C. Air D. Soil 相关知识点: 试题来源: 解析 A。阳光是植物的能量来源。B 选项水、C 选项空气、D 选项土壤不是能量来源。反馈 收藏
Cconversion of mass into energy Dconversion of magnetism into energySubmit The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about 107. Energy released in the process of fusion is due to mass defect. It is also called Q-value. Q=Δmc2,Δm=...
What is the source of energy for chemosynthesis? Where does the sun's energy come from? What is the source of all energy in the atmosphere? What do we call energy produced by or coming from the sun? What is the ultimate source of energy for the Earth?
Allen, Jae. What Is The Main Source Of Energy For The Water Cycle? last modified March 24, 2022. https://www.sciencing.com/main-source-energy-water-cycle-7317326/ Tharakorn/Getty Images When you've got to go, you've got to go, but sometimes circumstances get in the way. You might ...
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...
What is the main source of energy for the Earth? A. The Sun B. The Moon C. The Stars D. The Wind 相关知识点: 试题来源: 解析 A。地球的主要能量来源是太阳。选项 B 月亮只是反射太阳的光;选项 C 星星距离地球很远,不是主要能量来源;选项 D 风是由太阳的能量引起的大气运动。
Renewable energy comes from sunlight, wind, geothermal, moving water, biomass and biofuels. Environmentalists tout the importance of renewable energy sources because they represent clean energy with a lower impact on nature. Clean energy sources also cost less: The power source is free, and it co...
The source of air pollution is vehicle exhaust emissions. The original sky is blue and blue, but now some big cities, dark clouds, the sky is dazed, and, people smell car exhaust, can be very uncomfortable, and cause cancer. Cars bring convenience, but the fumes also cause trouble. So ...
递延年金、永续年金等。(1)一般年金终值和现值的运算①一般年金终值的运算②一般年金现值的运算【例题2】甲企业期望某一对外投资项目的估量投资利润率为10%，投资后每年年底能得到50万元的收益，并要求在第二年年底能收回全部投资，则该企业现在必须投资()万元。(已知年利率为10%时，2年的年金现值系数为1.7355)