单词:dynamics of population growth
单词:dynamics of population growth 相关文章
Lesson 9 Is It a Good Idea to Control Population Growth in the World? Text What Overpopulation Feels Like We moved slowly through the city in a taxi and entered a crowded slum district. The temperatur
The U.S. population is increasing at nearly one percent a year, making the United States the world's fastest growing industrial nation. 美国人口正以每年将近1%的速度增长,这使美国成为世界人口增长最快的工业化国家。
EXPLORATIONS -January 30, 2002: Population and the Environment By Cynthia Kirk VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Tod
Women Bear Brunt of Population Growth The global population is expected to rise to nine billion by 2050. Most of that growth will be in developing countries. However, many are asking whether such growth is sustainable, considering the amount of resou
Population Growth It is well-known that there has been a drastic increase in world population. But it is probably less well-known that the extinction rate of wildlife species is experiencing a parallel trend. Take the United States for instance. In 1
DEVELOPMENT REPORT – December 16, 2002: UN Population Study By Jill Moss Broadcast: December 16, 2002 This is the VOA Special English Development Report. The United Nations Population Fund has relea
By Jerilyn Watson Broadcast: September 11, 2003 This is Steve Ember with the VOA Special English Education Report. About one-in-four people age three and older in the United States is a student. The g
By Michael Bowman Washington 07 March 2006 view Global Population report By 2050, world population is projected to reach nine billion people. That would constitute a 38 percent jump from today's popul
Theres been an unexpected development in our understanding of drug resistance in bacteria. The accepted scenario was a simple case of evolutionary selection. In a bacterial population exposed to a killer drug, a few lucky individuals might have a gen
The same mathematical models used to study the hunting range of lions have many other applicationsthey describe the flight patterns of honeybees. And now researchers say these math models can help explain the stability of gang territories and pattern
By Lisa McAdams Moscow 08 March 2006 No country faces as severe a population decline as Russia. Disease, accidental death, and a decline in healthy newborns are to blame. In fact, deaths in Russia out
By Ernest Leong Washington, D.C. 21 August 2006 watch Population report The Population Reference Bureau (P.R.B.) released its annual data sheet on global population growth. The report had some interesting findings. Experts in world population growth
There is a consensus among the delegates and world leaders attending the climate change conference in Copenhagen on the need to cut greenhouse gas emissions and shift to cleaner/more efficient energy. But a research center in Britain is espousing a d
The so-called one-child policy was brought into law in the late 1970's as a way to limit population growth, given that the economy at the time was just starting to open up to the outside world, and the domestic resources, particularly in urban areas,
2004 marks the 10th anniversary of the groundbreaking International Conference on Population and Development (ICPD) in Cairo, Egypt, in 1994. Ten years ago, on the eve of World Population Day, a new campaign was launched to raise awareness of how int
The so-called one-child policy was brought into law in the late 1970's as a way to limit population growth, given that the economy at the time was just starting to open up to the outside world, and the domestic resources, particularly in urban areas,
BEIJING, Mar. 18 (Xinhuanet) -- Urbanization will be a major feature of China's economic growth and continue to gain momentum, Liu He, Party chief of the Development Research Center of the State Council, said on Saturday. At the China Development For
Latest figures show, the number of people in their working-age decreased by over 3 million in 2012, accounting for some 69 percent of China's total population. Ma Jiantang, director of State Statistical Bureau, warns this is a serious issue. It is th
Premier Li Keqiang says China will endeavor to maintain medium-high growth over the long run, and pay attention to the quality and benefits of development. We will follow the vision of innovative coordinated green open and shared development. Develop
Rapid Evolution and Population Dynamics 种群(population)指在一定时间内占据一定空间的同种生物的所有个体。种群中的个体并不是机械地集合在一起,而是彼此可以交配,并通过繁殖将各自的基因传给