首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、About 1.5 billion. B、About 1.8 billion. C、About 2 billion. D、About 3 billion. C On March 22, we observe World Water Day. It
A、About 1.5 billion. B、About 1.8 billion. C、About 2 billion. D、About 3 billion. C On March 22, we observe World Water Day. It
admin
2022-12-28
14
问题
选项
A、About 1.5 billion.
B、About 1.8 billion.
C、About 2 billion.
D、About 3 billion.
答案
C
解析
On March 22, we observe World Water Day. It is an opportunity to shine a light on the importance of clean water, and take action to counter water-related crises arising around the world. Without water, life is not possible. And yet, around 2 billion people now live in areas of severe scarcity. Some 1. 8 billion people depend on sources of drinking water that are contaminated with faecal waste, putting them at risk of contracting a number of deadly diseases such as cholera and dysentery. If current trends of consumption and pollution continue, by 2050 that number will increase to 3 billion people.
While increased waste water treatment is needed, green infrastructure solutions based on nature can produce low-cost options for restoring water quality and quantity. Right now, unsustainable land and water usage practices are contributing to the problems of pollution and scarcity. As forested land is degraded and natural wetlands lost, drier areas become drier still and are rendered unsuitable for agriculture, while areas that are subject to heavy precipitation such as monsoon rains, suffer more frequent and intense flooding.
Soil erosion is also a problem. Every year, 25 to 40 billion tons of topsoil are carried off by erosion, significantly reducing the soil’s ability to regulate and retain water, carbon and nutrients. The runoff, containing large amounts of nitrogen and phosphorous, is also a major contributor to water pollution. These are some of the reasons why this year’s World Water Day’s theme is “Nature for Water”, exploring how we can use nature to overcome the water challenges of the 21st century.
This includes restoring forests, grasslands and natural wetlands; reconnecting rivers to floodplains; creating buffers of vegetation along water courses; all are examples of nature-based solutions that help maintain water availability and quality. We can protect soil from erosion by utilizing conservation agriculture and planting native trees and shrubs along water courses.
We can help filter and purify waste water and enhance biodiversity. Protecting wetlands, which naturally filter and hold water, and reducing areas of hard surfaces and turf will also decrease runoff and water pollution. When we degrade our ecosystems, we make it more difficult to provide our population with the water we need to survive and thrive. On this World Water Day, we explore how nature-based solutions may help to solve many of these challenges.
22. How many people live in the places where there are severe water shortages?
23. What leads to the problems of water scarcity?
24. What’s the theme of this year’s World Water Day?
25. What does the speaker say is a nature-based solution that helps maintain water availability and quality?
转载请注明原文地址:https://kaotiyun.com/show/mFvD777K
0
大学英语六级
相关试题推荐
Oneofthemostalarmingthingsaboutthecrisisintheglobalfinancialsystemisthatthewarningsignshavebeenouttherefo
Amongtheraftofbooks,articles,jokes,romanticcomedies,self-helpguidesandotherwritingsdiscussingmarriage,somefamil
Duetohistoricalreasons,peopleintheCzechRepubliclacked________.
WhatistheminimumnumberofprojectsrunbytheSESannually?
Neverbefore________seenanyladywhocanplaytennisaswellasMaria.
Halfoftheworld’scoralreefs(珊瑚礁)havediedinthelast30years.Nowscientistsareracingtoensurethattherestsurvive.
Governmentreports,examinationcompositions,legaldocumentsandmostbusinesslettersarethemainsituations________formalla
Ratherthan________quietlybythefireside,he’dprefertotakealongwalkinthecountrysideonSundayshowevercolditmight
Forcertaineconomists,“pure”economictheory,thatis,economictheory________aspecificsocialstructure,isimpossible,much
Manyofthesedevelopmentsdrewontheexperienceoftherestoftheworld,ratherthanbeingconfinedwithintheboundariesof
随机试题
李汝珍的《镜花缘》是【】
预防疲劳提高作业能力的措施主要包括
政府在必要时可以实行政府指导价或者政府定价的商品或服务价格有()
房屋所有权即房屋产权,包含()权能。
运输企业经营计划实施控制的主体是各项方针目标和计划目标。()
制约教育事业发展的规模和速度的因素是()。
教师犹如露珠,滋润着吐艳的花朵,犹如泥土,无私地奉献养分。这形象地说明了为人师表所具有的()。
阅读以下文字。完成下列问题。教育的任务就是唤醒人的潜力或潜在本质,使其内部产生一种自动力,最大限度地使其内部灵活性与可能性得到最佳发展。教育实质上是人的灵魂的教育,而不仅仅是知识和认识的积累,而灵魂的成长成熟是没人可以代劳的。按本性说,人都希望成为真正的
我国刑罚的执行由不同机关负责实施,其中由法院负责执行的刑罚种类有()。
若实体A和B是一对一的联系,实体B和c是多对一的联系,则实体A和c的联系是()。
最新回复
(
0
)