B. The number of trees C. The intensity of solar burning D. The quality of air. 相关知识点: 试题来源: 解析 [ 解析] C本题是事实细节题。根据“During the sun's violent periods,.”interfere with the formation of carbon-14 0n earth.”可知影响地球上碳-14数量的因素是太阳风的强弱。
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What is the age limit of radiocarbon dating? What is the role of isotopes in radiometric dating? What are three methods of radiometric dating? What are the limitations of radiocarbon dating? What type of material would carbon-14 be most useful in dating? What atom does carbon-14 decay to?
Radiocarbon dating is a method that provides objective age estimates for carbon-based materials that originated from living organisms. An age could be estimated by measuring the amount of carbon-14 present in the sample and comparing this against an inte
situation.Everyonehasshortcomings.However,thevastmajorityofpeoplehavegoodqualities thatoutweighbadones. 3 Communicatingmoreeffectively · 4 Somepeoplehaveissuesthatmayneedaddressing.However,feedbackisvery differentfromcriticism.Whenaddressinganissue,focusonsuggestionsyoucanmaketohelp anotherpersonimprove,whichismoreeffe...
onself-drivingcars?safetyhavebeenrecordedofteningoodweatherandonhighways,wherethe mostimportanttasksarestayinginthecar?sown laneand not getting too closeto the vehicle ahead.Automatedcarsaregoodatthosetasks, butsoarehumans. Itistruethatself-driving cars don?t get tired,angry,frustratedordrunk .Butneither...
百度试题 结果1 题目What is the atomic number of carbon? A. 6 B. 8 C. 12 D. 14 相关知识点: 试题来源: 解析 A。解析:碳的原子序数是6。选项B,8是氧的原子序数。选项C,12是碳的相对原子质量。选项D,14是硅的原子序数。
But the frustrations just made us work harder. We slowly got things fixed and moved into the house after 38 days. While living here for the past four months has been a big adjustment, there are many benefits to li...
The decision of the German federal government to cease lignite mining until 2038 or—if possible—already earlier until 2030, will cause manifold transition processes in the remaining lignite mining districts of Germany. The two largest districts are located in geographically opposite regions: The Rhine...
Planting trees to sequester carbon dioxide mitigates climate change, but it has been contended that insufficient attention is given to the quality of the germplasm established in afforestation/reforestation programmes, limiting sequestration opportunities. To understand current practices in the choice, ...