And then, by simply connecting a “ plug” to the plant stem(茎), the electricity produced can he harvested and used to power electronic devices. The researchers additionally describe for the first time how this effect can be used to transfer wind into electricity by plants. They equipped a...
T he sun gives us as much energy every minute as mankind uses in a year. At present, we use this energy indirec Coal(煤) represents the chemical action of the sun on green plants thousands of years ago.Water power results from the rain formed by vapor when water changes into gas under...
Describe how vitamins differ from energy nutrients. What macromolecule is produced during photosynthesis for plant food? What is a macronutrient? Explain and give examples. Is glucose the only source of food energy? What are the bacteria using for nutrients in nutrient agar?
Which greenhouse gas is produced by landfills?Greenhouse Gas From Solid Waste:Landfills, although they decompose solid wastes, can also produce greenhouse gases that contribute to climate change. The three processes that contribute to the production of these gases from landfills include chemical reactions...
Nuclear fuel can be reprocessed at specialized recycling plants. The recovered uranium is called reprocessed uranium — it can be reused as a new type of fuel. What is depleted uranium (DU)? As we have seen in the chapter on enrichment, centrifuges produce uranium that contains a higher isot...
The sun gives us as much energy every minute as mankind uses in a year. At present, we use this energy indirectly, and it is our final source of power.Coal represents the chemical action of the sun on green plants thousands of years ago.Water power results from the rain formed by ...
根据原文第1段The energy which the sun radiates(辐射) goes in every direction. But only a minute part of it falls on the earth可知,太阳向四面八方散发出能量,但是只有一小部分属于地球。短语a minute part of在句中意为“一小部分”,a minute可意为“一点点”,B选项符合题意,故选B。【小题2】...
So, the best way is to encourage power plants to use it. 【1】Why is biomass considered as “ a sort of natural battery”? A. It burns merely plant matter. B. It keeps producing electricity. C. It stores the energy from the sun. D. It produces zero carbon dioxide. 【2】We learn...
Energy is defined as the ability to do work. In organisms, energy is harnessed from organic compounds and is used to power biochemical reactions. The energy most organisms utilize is ATP which is produced from the oxidation of glucose sugar....
Environmental geology deals mostly with the time span including the (a) ___ epoch, which ran from (b) ___ years ago to (c) ___. The epoch of the "ice ages" is the ___. Ice Ages An ice age is a period of...