potential to satisfy all future energy needs. In the 21st century solar energy has become increasingly attractive as arenewable energysource because of its inexhaustible supply and its nonpolluting character, in stark contrast to the finitefossil fuelscoal,petroleum, andnatural gas.See alsosolar power...
there would soon be littlefoodor other organic matter on Earth. Most organisms would disappear, and in time Earth’s atmosphere would become nearly devoid of gaseousoxygen. Solar energy is also essential for theevaporationofwaterin thewater cycle, land and water temperatures, and the formation of...
2In fact fuels we burn and plant food we eat ___ their chemical energy in the form of heat.A.give in B.give off C.give awayD.give up 3(2013·哈尔滨四校高三一模)In fact fuels we burn and plant food we eat ___ their chemical energy in the form of heat.A.give inB.give off...
The Heat is On – The Energy Stored in Food Introduction: Plants utilize sunlight during photosynthesis to convert carbon dioxide and water into glucose (sugar) and oxygen. This glucose has energy stored in its chemical bonds that can be used by other organisms. This stored energy is released ...
Embodied energy stored up in tools and other capital goods that can be reused later. Some of the energy in making these tools is human energy (including human thinking capacity), and some of this is energy from other sources, such as heat from burning wood or another fuel.Human energy–Hum...
No discussion on our Sustainable Future would be complete without taking a look at how we are going to power the change. Fossil fuels are still our main source of energy but things are changing. CNBC takes a look at the energy transition, from the role incumbent energy providers will play,...
Read the full-text online article and more details about NFU Fuels the Debate over Energy or Food from Crops; Biofuels Have Become a Whipping Boy of Choice for Chattering Classes'.Western Mail (Cardiff, Wales)
.all food D.both B and C(3)The sun's energy indirectly provides the earth with___.[ ]A.Fuels B.Waterpower C.light D.Both A and B(4)The largest part of the energy from the sun is ___.[ ]A.stored by the current season's plantsB.turned into ...
For decades, scientists have calculated how much fossil fuel goes into the food by measuring the amount of energy consumed in growing, packing, shipping, consuming, and finally disposing of it. The caloric input of fossil fuel is then compared with the energy available in the edible product, ...
1. Plants create energy from the sun and it is stored in the plants even after they die.2. We get energy in this way by burning plants.3. It can also be made into fuel(燃料). It can power buses. This kind of energy does less harm to the environment than gas. Water Energy 1. ...