首页
登录
职称英语
A few degrees can make a big difference when it comes to food storage. Foods
A few degrees can make a big difference when it comes to food storage. Foods
游客
2023-07-01
47
管理
问题
A few degrees can make a big difference when it comes to food storage. Foods can go bad if they get too warm. But for many of the world’s poor, finding a good way to keep food cool is difficult. Refrigerators are costly and they need electricity.
Yet spoiled food not only creates health risks but also economic losses. Farmers lose money when they have to throw away products that they cannot sell quickly.
But in 1995 a teacher in northern Nigeria named Mohammed Bah Abba found a solution. He developed the "Pot-in-Pot Preservation/Cooling System." It uses 2 round containers made of clay. A smaller pot is placed inside a larger one.
The space between the 2 pots is filled with wet sand. The inner pot can be filled with fruit, vegetables or drinks. A wet cloth covers the whole cooling system.
Food stored in the smaller pot is kept from spoiling through a simple evaporation process. Water in the sand between the 2 pots evaporates through the surface of the larger pot, where drier outside air is moving.
The evaporation process creates a drop in temperature of several degrees. This cools the inner pot and helps keep food safe from harmful bacteria. Some foods can be kept fresh this way for several weeks.
People throughout Nigeria began using the invention. And it became popular with farmers in other African countries. Mohammed Bah Abba personally financed the first 5,000 pot-in-pot systems for his own community and five villages nearby.
In 2000, the Rolex Watch Company of Switzerland honored him with the Rolex Award for Enterprise. This award recognizes people trying to develop projects aimed at improving human knowledge and well-being.
A committee considers projects in science and medicine, technology, exploration and discovery, the environment and cultural history. Winners receive financial assistance to help develop and extend their projects.
The award is given every 2 years. The most recent one was given last year. [br] In Mohammed Bah Abba’s cooling system, the evaporation process is used to _____.
选项
A、prevent the loss of water
B、cause dry and wet air to exchange
C、keep the stored food dry
D、take heat away from the inner pot
答案
D
解析
第5段和第6段的内容表明“蒸发过程”可以使里面的小罐子温度降低,从而起到冷藏、保存食物的目的,D“将热量带走”也就意味着“温度降低”,两者的意义相同,因此,本题应选D。
转载请注明原文地址:http://tihaiku.com/zcyy/2798889.html
相关试题推荐
Todaywetalkaboutthedifferencebetweenacollegeandauniversity.Colle
Todaywetalkaboutthedifferencebetweenacollegeandauniversity.Colle
Todaywetalkaboutthedifferencebetweenacollegeandauniversity.Colle
Todaywetalkaboutthedifferencebetweenacollegeandauniversity.Colle
Todaywetalkaboutthedifferencebetweenacollegeandauniversity.Colle
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foods
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foods
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foods
[originaltext](22)Afewdegreescanmakeabigdifferencewhenitcomesto
[originaltext](22)Afewdegreescanmakeabigdifferencewhenitcomesto
随机试题
[originaltext]Howmuchisthecompensationforbreakingthecontract?(A)I’ms
Moststudentsareusuallyintroducedtothestudyofhistorybywayofafat
Fromtheair,thelinesetchedinthefloorofthedesertwerehardtosee,
Then______wehadbeenlookingforwardto.A、camethehourB、thehourcameC、comes
治疗金黄色葡萄球菌引起的骨髓炎首选药物为A.青霉素 B.氯霉素 C.四环素
“胡老师要求学生将本学期听过的演唱会或音乐会门票贴在一张纸上,然后写上简短的观感
共用题干 甲房地产经纪机构(以下称甲机构)是个人独资的房地产经纪机构。张某和王
根据《历史文化名城名镇名村保护条例》中的规定,下列关于其保护范围内的建设活动内容
斯大林在《论辩证唯物主义和历史唯物主义》一书中首次明确提出一切以条件、地点和时间
因债务人怠于行使其债权或者与该债权有关的从权利,影响债权人的到期债权实现的,债权
最新回复
(
0
)