有关Population的写作作文
Manycountrieswillexperienceagingpopulationsinthenextcenturybecauseofdecliningbirthandmortalityrates.Chinawillsoonjointheirranks.Accordingtostatistics,theagingofChina'spopulationwillapproachitspeak...
Currently,thereisawidespreadconcernaboutthepreviouslyneglectedconnectionbetweengrowinghumanpopulationanddecreasingwildspecies.Asthetwographsobviouslyportrayed,Americanpopulationin1980was250timesthanth...
Now,thepopulationquestionalreadytheworldwidebasisquestion,wemustpayattention.in2000theworldpopulationachieved6,000,000,000,becausethepopulationquestionhasbeenintheworldthemostmajorproblemoverpopulatio...
nothingintoday'sworldisasbigaproblemasthatofpopulation.peoplebegintoworryaboutthesupportcapacityoftheearth.andtheremightbeonlystandingroomforeachpersoninthefuture.lima'spopulationwas5.7million...
Thehumanracehasexperiencedaconsistentincreaseinpopulationsincethebeginningofitshistory.Famineanddiseasehavedonelittletooffsetthissteadyincrease.Toomanypeopleareaddedannuallytothepopulationoftheworld.S...
Thisisreallyaseriousproblemweshouldpayattentionto!Sothistopicisquitemeanfulling!sonetcollectedthisessayforyou!Thehumanracehasexperiencedaconsistentincreaseinpopulationsincethebeginningofitshistory.Fam...
Environmentalproblemsarebecomingmoreandmoreseriousallovertheworld.Forexample,carshavemadetheairunhealthyforpeopletobreatheandpoisonousgasisgivenoffbyfactories.Treesonthehillshavebeencutdownandwastewat...
Populationexpansionisoneofthemostseriousproblemsintheworld.Withbetterhygienicconditionsandbettermedicalcare,fewerbabiesdietoday.Butthebirthrateremainsunchanged.Moreover,thedeathratehasbeenloweredconsi...
Ithasbeenestimatedthatathousandyearsagotherewerelessthan400millionpeopleonearth.Today,however,theworld'spopulationhasamountedto5,000million.Whatisworse,itkeepsgrowingatasurprisingspeed.Ifthistrendconti...
Manycountrieswillexperienceagingpopulationsinthenextcenturybecauseofdecliningbirthandmortalityrates.Chinawillsoonjointheirranks.Asfortheissueofaging,itssituationhasbeengrowingincreasinglysevereinspite...
Asisseenfromthetwographs,itisclearthatwiththerapidgrowthofU.S.populationfrom1800to1990,thenumberofitswildlifespeciesnolongerexistingsoaredduringthesameperiod.Naturally,wecandrawtheconclusionthatthesha...
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