The author refers to Solida80 hispida as an example of a flower that she: stumbled upon it. walks. was pleased to encounter again after she had learned to identify it. characteiistics. ACT-66F 35 GO ON TO THE NEXT PAGE. Passage IV had an)J applicaiioi)% tor his re.seai-cli. Raiioo now iises 'eroji)'s elecii-.017 Inicroscopv . daia. witli i1c.rola.V.e..-s2zeI,IIIc dai'a, ,'iii.,.-Il)L. .55 odel :,io' prediL.t. the aiTrounl,.of..iii_dtei-'.aw.¢iilab.le...iii a .'inter.:.snowpJck..'.For :IK.'ec1ei'ii states :-stscli ..a.s..Colorado. .Moiiianq,.Lltah,and M,'N'oniiii<y.'about-, 7) 'perceiil..of ilie -ai)nual ..waier'gupplxi .coiiies trom..%noiv,nieli. Siiowiiielt ,'aler-.is criiical. to,. crop,':irri.galion. aiid ,hJ'dioelectz'ic .60, poM'eF,.as-ii,'cll-:as' I"eci'edlion.'dnd .,donieslic..IV41ter',sui)-. plies, fishei'iei 7nanatsLllltnt.diid 'flood control. NATURAL SCIENCE:..This Passage is adapled Irom the arli¢le "When Research Is a Snow Job: by Saiah Boyle (02002 by N2tional Wildlile). Tlie fitsure is be)'oiid coiiiprehen%ioii- ENiery )iear. I,000,000.ooo,000,000,000:000,000 ( I sepiillion) siioivflake4,fall IK'oi'ldi¥'ide. As Ihe crysials, fall..tliey ,encounier dit'fei'eiii.ainio£pheL'iC condilioiis Thai produce 5 flake.£ with unique allribules. The 17101e COlTJplex (hose conditi0118 are: IIIL iiiore. elaboraie.the crystals. - Betore.'eiiiploy,ints..Ihe,,,scannino ,eleciroii ..niic,I'og- opy results, Ihe forecaRted.aiiiounts of snoivpack. Water 'wcre iiiaLcuratt thilieiiel'er the si7.e aiid %hap¢ of ihe 65 snoiv Lr)Istals iiaried Inuch froiii ilie norni, 'Tlie iiioye we know about crystals. notes Ran(yo. 'Ihe easier li will be io use iiiicrowdl,'e saiellite daia for prediciioiis of the snow water equii.'alent.' Keniieili Libbrecht is a physicisi at ihe Califoi-i)ia Insiiiuie of Teclinolooji Alono wilh ilie iiJoYk of scien- tists al the U.S. Dcpailineiit of Aoriculture s A<yricul- 10 tural Re%earch Service (ARS), his research is uncoiierino Iiew iiifoi'ixation about the niagical woi'ld of snow crysials inforniaTion Ihai has pi'aciical applica- tions in such diverse ¢lreas as aoriculture and the pro- duction of electi'icity. Currently, forecasts usino the niodel are aboui 70 90 perceni accuraTe. A 1980 siudy ebiiinated ihat rovir3g ilie prediciion by I peFcenl Ivould save million.in irrigation and hydropower in ilie Th'estern :. .United Stales. Snow crysials are individual erysials usually in a hexagonal .foTIII wliile'snowflakes are collections of .Iwo or.liiore, sno1¥ crysials. Beoiniiiiio as condensed orows around.a nucleus. .w.aier vapor, a crystal typically'¥ ..of dust.,Jts shape depends oji .how ihe six.side..faceis ,20 .:or; faces-grow in rel.aiion io..Ihe.Iop 2nd..boiiom faceis. If :Ihey orolv. relaiively'.tall, the, crystal: appe2TS .columii- , lik¢; if .the side .faceis. are:,short compared ,to:Ihe,lenoih ,. of.the.botioin and top fdcets,'.Ihe.cryyial,lo.o.ks..platelike. Rango..'is also,.lookino ahead at.climaie chanoe.pre-, diclions. Followinv',Ihe.::est.imalès..Lhai hai.'e been niade.. aboui...w.hai .:w.ill happen';by: 2100, things are .defiiiite'ly. varming.:up, he,:says'. Teniperature,::,increases::.Ivill': Jikely:,.result.,'3n"ai'Teduciion..in 'streain,: flow.,as,-overall snowraccumu12tiori:decrea5es winter.pi".ecipitat.inn'.runs.' 80,'<off.:,as.,r.ain.,,and':water,'.e.ap0rateS,at,,..a.qV1cker.raIe.,.The beiwe¢.ni waler:.'5upply'and.,,.demand.:.,ili.211.,.m:aonif) ..even.'mor.e,'. greaily"IllCTèasing 'waier'.s ecorjomic'value: antiCTpates R2n(FO. . curr.ently Libbr.eclil .is,,Ir}'.ing.,to cr2ck. the: pioblem
