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
2024-01-29
15
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:https://tihaiku.com/zcyy/3405020.html
相关试题推荐
[originaltext]Rainforestscircletheglobefortwentydegreesoflatitudeon
[originaltext]Rainforestscircletheglobefortwentydegreesoflatitudeon
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foods
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foods
[originaltext]AbigdifferencebetweenpublicandprivateinAmericanhighe
[originaltext]AbigdifferencebetweenpublicandprivateinAmericanhighe
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foods
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foods
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foods
[originaltext](19)AbigdifferencebetweenpublicandprivateinAmericanhighe
随机试题
手太阳小肠经与足太阳膀胱经的交接部位是A.目内眦下 B.目外眦上 C.目内眦
A.评价食物蛋白质含量的指标 B.评价食物蛋白质利用率的指标 C.评价食物蛋
患儿男性,14岁。脊柱向左向后弯曲,渐加重半年以特发性脊柱侧弯入院,在全麻加硬膜
德育模式又称德育手段,是开展德育的具体方法。( )
在下列描述课程目标的行为动词中,要求最高的是()。A.理解 B.了解 C
男性,33岁,左小腿被锈铁钉刺伤一段时间后出现乏力、头痛、打哈欠,继而有张口困难
与蜘蛛痣形成相关的因素是A:血小板减少 B:体内雌激素增高 C:红细胞减少
百合固金汤、养阴清肺汤和清燥救肺汤均含有的药物是( ), A.生地黄 B.
关于期权的描述,下列说法正确的是()A.场内期权的标的资产可以是现货资产,也可以
企业投资项目申请报告的内容不包括()。A.项目单位情况 B.项目及投资方情况
最新回复
(
0
)