- In1620,abouthalftheUSAwascoveredbyforests.Todaytheforestshavealmostgone.Alotofgoodlandhasgonewiththem,leavingonlysand.Chinadoesn'twanttocopytheUSA'sexample.We'replantingmoreandmoretrees.We'vebuiltthe"GreatGreenWall"oftreesacrossnorthe...
- 27671
- Thesedaysweoftentalkabouttheimportanceofournaturalresources.Inmanycountriestheyaredisappearingatarapidrateandenvironmentalistsareurgingpeopleeverywheretoprotecttheirair,water,forests,wildlife,andsoon.Itisdifficulttochoosejustonenaturalresourcetosave,...
- 23640
- Thesedasweftentalabuttheiprtancefurnaturalresurces.Inancuntriesthearedisappearingatarapidrateandenvirnentalistsareurgingpepleeverwheretprtecttheirair,water,frests,wildlife,andsn.Itisdifficulttchseustnenaturalresurcetsave,butinpinin,savingthefrestsshu...
- 9576
- ProtectingtheForestsNowinsomeplacesofourcountry,anumberofpeoplehavebeencuttingdownthetreesintheforestsbecausetheyneedwoodandmorefarmland.Theareasofforestsaregettingsmallerandsmaller.Somescientistssaythattherewillbenovastforestsin20or30years.Itisreall...
- 15845
- In1620,abouthalftheUSAwascoveredbyforests.Todaytheforestshavealmostgone.Alotofgoodlandhasgonewiththem,leavingonlysand.Chinadoesn'twanttocopytheUSA'sexample.We'replantingmoreandmoretrees.We'vebuiltthe"GreatGreenWall"oftreesacrossnorthe...
- 16840