The Problem of Human Population作文
Ithasbeenestimatedthatathousandyearsagotherewerelessthan400millionpeopleonearth.Today,however,theworld＇spopulationhasamountedto5,000million.Whatisworse,itkeepsgrowingatasurprisingspeed.Ifthistrendconti...
population growth作文
Asisseenfromthetwographs,itisclearthatwiththerapidgrowthofU.S.populationfrom1800to1990,thenumberofitswildlifespeciesnolongerexistingsoaredduringthesameperiod.Naturally,wecandrawtheconclusionthatthesha...
the population question作文
Now,thepopulationquestionalreadytheworldwidebasisquestion,wemustpayattention.in2000theworldpopulationachieved6,000,000,000,becausethepopulationquestionhasbeenintheworldthemostmajorproblemoverpopulatio...
Population Burden作文
Manycountrieswillexperienceagingpopulationsinthenextcenturybecauseofdecliningbirthandmortalityrates.Chinawillsoonjointheirranks.Asfortheissueofaging,itssituationhasbeengrowingincreasinglysevereinspite...
growing human population作文
Currently,thereisawidespreadconcernaboutthepreviouslyneglectedconnectionbetweengrowinghumanpopulationanddecreasingwildspecies.Asthetwographsobviouslyportrayed,Americanpopulationin1980was250timesthanth...
The World Population Explosion作文
Thehumanracehasexperiencedaconsistentincreaseinpopulationsincethebeginningofitshistory.Famineanddiseasehavedonelittletooffsetthissteadyincrease.Toomanypeopleareaddedannuallytothepopulationoftheworld.S...
Aging of Population in China作文
Manycountrieswillexperienceagingpopulationsinthenextcenturybecauseofdecliningbirthandmortalityrates.Chinawillsoonjointheirranks.Accordingtostatistics,theagingofChina'spopulationwillapproachitspeak...
Population and Environment作文
Environmentalproblemsarebecomingmoreandmoreseriousallovertheworld.Forexample,carshavemadetheairunhealthyforpeopletobreatheandpoisonousgasisgivenoffbyfactories.Treesonthehillshavebeencutdownandwastewat...
Population expansion作文
Populationexpansionisoneofthemostseriousproblemsintheworld.Withbetterhygienicconditionsandbettermedicalcare,fewerbabiesdietoday.Butthebirthrateremainsunchanged.Moreover,thedeathratehasbeenloweredconsi...
The World Population Explosion大纲作文
Thisisreallyaseriousproblemweshouldpayattentionto!Sothistopicisquitemeanfulling!sonetcollectedthisessayforyou!Thehumanracehasexperiencedaconsistentincreaseinpopulationsincethebeginningofitshistory.Fam...
Population to Be Curbed作文
nothingintoday'sworldisasbigaproblemasthatofpopulation.peoplebegintoworryaboutthesupportcapacityoftheearth.andtheremightbeonlystandingroomforeachpersoninthefuture.lima'spopulationwas5.7million...