Answers.comÂ® is making the world better one answer at a time. The element that makes the strongest material is carbon, and the material which is made is graphene. Thao Hg.
<br /><br /> Solar power is the cheapest renewable energy source for small-scale use, such as pocket calculators, LED lights, and remote (small) electrical appliances. Hydroelectric power is the cheapest renewable energy source for large-scale production. That is, it has the lowest cost to construct and maintain the generating facilities compared to the amount of energy produced.
Which of the following is the least-polluting, nonrenewable energy source? A) oil B) natural gas C) biomass D) coal Wind machines use the power of _____. A) falling water B) moving air C) the earth's core D) plant and animal remains Which of the following statements is true? A) Hydropower is the most-commonly used renewable energy source in the United States. B) Hydropower uses the energy of the Sun to generate electricity. C) Natural gas is a renewable source of energy. D) Wind and water are fossil fuels. Burning biomass _____. Choose all of the answers that apply. Solar energy _____.