NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
A. decline in population B. increase in rural areas C. expansion of urban areas D. reduction of E. conomic activities 相关知识点: 试题来源: 解析 C。解析:城市的发展通常伴随着城市区域的扩张,选项 A 人口减少不对;选项 B 农村地区增加不符合;选项 D 经济活动减少错误。反馈...
As if a declining population wasn’t bad enough, a rare species of bird in Australia has now forgotten how to sing. The falling numbers of the Regent Honeyeater mean that fewer adults are around to pass on to youn...
A. Decline in economic growth. B. Increase in crime rates. C. Higher healthcare costs. D. Changes in consumption patterns. 相关知识点: 试题来源: 解析 B。选项 A,老龄化可能导致经济增长放缓;选项 C,老年人口多会带来更高的医疗成本;选项 D,会改变消费模式;而老龄化不一定会导致犯罪率增加。反馈...
百度试题 结果1 题目According to the passage, what is the main reason for the decline in bee population? A. Pesticides. B. Loss of habitat. C. Climate change. D. Disease. 相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 结果1 题目According to the text, what is the primary reason for the decline in the population of the species? A. Habitat loss B. Overhunting C. Habitat loss D. Overhunting 相关知识点: 试题来源: 解析 A 反馈 收藏
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With the release of end-of-year and end-of-decade U.S. population estimates, Ponzi demography is again appearing in news headlines, economic reports and investment commentaries around the country.Chamie, JosephIndependent, Consulting Demographer...
The study population consisted of 26, 609 men. During the study period there was a continuous and significant decline in sperm concentration (26.3 to 36.3%). The average decrease over the 17 year study period was 32.2%. Projections based on a 35 year old male suggested that sperm concentratio...
It is apparent that we are living in an era of information explosion. There is a famous remark that “A wealth of information creates a poverty of attention”. People in mounting numbers complain that they are lost in the information age. ...