首页
登录
职称英语
[Gardener wanted.NASA requires a gardener to grow plants in a greenhouse
[Gardener wanted.NASA requires a gardener to grow plants in a greenhouse
游客
2024-08-14
19
管理
问题
[Gardener wanted.NASA requires a gardener to grow plants in a greenhouse.The successful applicant must be willing to travel long distances.The location is Mars.Transport will be provided.Please contact for further details and to arrange an interview.]
For the moment the position described above is an imaginary vacancy.It will probably be many more years before gardeners are needed on Mars.However, the actual growing of plants on Mars may be only a year away.Scientists are currently suggesting a mission that might put plants on Mars next year.
The idea is to use a small NASA spacecraft called a ’Mar Scout’ to send the plants in a miniature greenhouse.Landing on Mars it would scoop up some Martian soil.Enhance it with nutrients and then try to germinate and grow the seeds.The seeds would be bioengineered mustard plants, altered so that they would glow when they are struggling.Using bioengineering the mustard seed genes can be combined with jellyfish genes that make the plants glow with a soft green aura when they encounter problems.Healthy, thriving plants will not glow.When the scientists observe a plant is glowing, they can study it and learn what needs to be charged for plants to be able lo grow on Mars.
The aim of the experiment is to eventually be able to successfully grow plants in Martian greenhouses, and perhaps one day openly on Mars itself.What value does this have? After all, it would not be viable to farm food on Mars and then return it to Earth.
The meaning lies in being able to sustain life on Mars itself.It is far too expensive to transport all the supplies that would be needed by a Martian colony form Earth.So a crucial element for establishing a long-term human presence on Mars is a sustainable life support system.This is called ’ Bioregenerative’ , a renewable symbiotic relationship between plants, humans, and microbes.The humans produce the carbon dioxide and nutrients via their waste that the plants need, in turn they produce the oxygen and food that the humans need.The microbes make the process possible.Also, there is the social and symbolic value.When Earth life is actually growing on another planet that is likely to reignite interest in space travel: public interest and support for space travel is essential if governments are to be permitted to invest the huge sums of money required for such experimentation.
Questions 56—60 Complete the following schema with no more than three words for each blank according to the passage.
[br]
选项
答案
Martian greenhouses
解析
根据题意定位至文章第三段。 原文第一句提到“The aim of the experiment is to eventually be able to successfully grow plants in Martian greenhouses, and perhaps one day openly on Mars itself.”由此可知,实验的目的是在火星温室里种植植物,最后在火星上种植植物,故本空填Martian greenhouses.
转载请注明原文地址:https://tihaiku.com/zcyy/3719127.html
相关试题推荐
Theoceanshaveabigeffectontheweatherwerelyonforcropsandplants.A、Tr
Plantsthatgrowinthedesertoronhighrockyledgescansurvivelongperiods
Trainingisacostlyexerciseforanyorganizationtoundertake.Itrequires
Trainingisacostlyexerciseforanyorganizationtoundertake.Itrequires
Trainingisacostlyexerciseforanyorganizationtoundertake.Itrequires
Trainingisacostlyexerciseforanyorganizationtoundertake.Itrequires
Trainingisacostlyexerciseforanyorganizationtoundertake.Itrequires
Nuclearpowerplantsaresomeofthelargestproducersof______wastes,withea
Nuclearpowerplantsaresomeofthelargestproducersof_____wastes,witheach
教育部要求,课外活动应作为学校生活的一部分。(require)TheMinistryofEducationrequiresthatextra—cur
随机试题
WherecanyoufindapostofficeintheUnitedStates?Perhapsin______.[orig
WhatdoesthespeakersayabouttheroadbetweenMainandQuebec?[originaltext
司机一动不动地坐在那儿,他明白这场交通事故有多么严重。(beawareof)Thedriversattheremotionlessly,aware
读研toattendgraduateschool
阅读下列材料,回答问题。 材料一(李鸿章指责清朝的一些官僚说)“中国士大夫沉浸
国家权力机关的监督,是指各级人民代表大会及其常务委员会对公安机关及其人民警察(
一住店客人未付房钱即想离开旅馆去车站。旅馆服务员揪住他不让走,并打报警电话。客人
2022年1月,张某、李某、赵某三人共同出资设立了甲有限合伙企业,其中张某为普通
A.大脑皮层 B.腰膨大 C.脑干 D.胸髓 E.内囊引起单瘫的病变部位
根据《民法典》,债权人将合同中的权利转让第三人的( )。A.需经债务人同意,且
最新回复
(
0
)