从太空地球阅读级单词计数访问本书raz lnclr.pdf
TableofContents
Introduction4
WeatherSatellitesWatchStorms7
Conclusion
KeepingWatchonPollution8
Formostofhistory,peoplecould
WatchingChangestotheLand10
seeandunderstandjustasmall
partoftheworld.TheyviewedWatchingClimateChange
everythingateyelevel.EvenaEffects12
whotraveled,orascientist,
Conclusion14
couldonlyseewhatwasrightin
frontofhimorher.Glossary16
14WatchingEarthFromSpace•LevelN3
AnotherresultofEarthbecoming
warmeristhespreadofdesertsand
otherdrylands.Satelliteimages
showwherelandistoodrytogrow
foodorfeedfarmanimals.
dust
Introduction
Theworldrightaroundyouhas