2013世界防治荒漠化和干旱日主题是什么
题目
2013世界防治荒漠化和干旱日主题是什么
是2013年
答案
“The theme of the 2013 World Day to Combat Desertification is drought and water scarcity. Freshwater is valuable. Of all the water on Earth, only 2.5 per cent is freshwater. And of all this freshwater, the total usable supply for ecosystems and humans is less than 1 per cent. When demand for water exceeds available supply, it results in water scarcity. Drylands are particularly vulnerable to water scarcity. The projected intensification of freshwater scarcity will cause greater stresses in drylands. While each person needs at least 2,000 cubic meters of water for human well-being and sustainable development every year, on average, people in the drylands have access to only 1,300 cubic meters.”
“This year’s slogan, “Don’t let our future dry up” calls for everyone to take action to promote preparedness and resilience to water scarcity, desertification and drought. ”(source: UNCCD)
那么 2013年的主题就是干旱和水资源匮乏问题.
然后 今年的标语是“不要让人类的未来枯竭了”.
希望能帮到你.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
- “explore your dream,free your world”
- 三角形ABC是直角三角形,AC长6厘米,BC长8厘米,AB长10厘米,求CD的长 我要答案
- 钝角度数的一半一定是锐角._.(判断对错)
- 4.一辆汽车和一辆自行车从相距172.5千米的甲、乙两地同时出发,相向而行,3小时后两车相遇.已知汽车每小时比自行车多行31.5千米,求汽车、自行车的速度各是多少?
- 0是最小的正整数吗?
- 血糖主要代谢途径
- 函数f(x)=4x的平方-4mx+m的平方-2m+2 m属于全体实数,在区间[0,2]的最小值是5
- 社会意识的本质特征?
- 已知数列{an}是首相为1的等比数列且数列4a1,2a2,a3成等差数列,则数列{an分之1}的前五项的和为多少
- 已知x>0,y>0且2x+3y-4xy=0则3x+2y的最小值是
热门考点