Why is nitrogen necessary for life? Why must renewable resources be managed? Why are non-renewable resources important? How does nitrogen cause eutrophication? How do human affect the nitrogen cycle? How do renewable resources affect the environment?
For example, hydrogen can be used as fuel, and it can be combined with nitrogen (氮气) to form new materials necessary for human settlement. Due to these advantages, Mars would be a more successful planet for exploration and settlement because it contains the basic resources necessary for ...
六、阅读理解体裁话 题词 数难度建议用时说明文环境保护279★★6 mins A healthy environment is necessary for humans and animals to survive. Drinkable water,breathable air, and edible food are some of the resources that are necessary for life to continue.Here are some ways to save natural resources...
aNitrogen is an inert gas, but at a high temperature can and file, calcium, magnesium and oxygen. Nitrogen can be liquefied, condensed into liquid nitrogen. Nitrogen so can be applied to oil industry is suitable for physical reasons, its chemical properties, a guaranteed source, low cost. 氮...
Nitrogen is an essential component that is required by all the living organisms for proper growth and reproduction. Nitrogen is present in several inorganic compounds in living organisms like proteins, enzymes, amino acids, and nucleic acids.
The Nitrogen Cycle Nitrogen is an essential element for all known life forms, and it is required to form amino acids, proteins, andDNA. Although 78% of the Earth’s atmosphere consists of this element, it cannot be used directly by plants in this form. Molecules of the gas consist of tw...
a通货紧缩政策 Outside field market[translate] a这么可怕的事情从未在我们镇上发生过 正在翻译,请等待...[translate] amost kjeldahl nitrogen supplied is available for nitrification. 由供应的多数凯氏法氮气为氮的硝化作用是可利用的。[translate]
it’s beenshown to have positive effectsof production ofgrowth hormone, which can improve aspects of mental health, such ashelping with releaseofgamma-aminobutyric acidthat boosts feelings of “inner calm and tranquility.” Nitrogen, created by glutamine in high amounts, also helps with wound heal...
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by carbon-based life on Earth.But the elements are still products of stars and would still be present in planetesimals everywhere.No matter what kinds of life we are looking for, we are likely to find the necessary elements on almost every planet, moon, asteroid, and comet in the universe...