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Bi 54: NHIM MI TRNGI. nhim mi trng l g ?

- L hin tng mi trngt nhin b bn, ng thicc tnh cht vt l, ho hc,sinh hc ca mi trng bthay i, gy tc hi ti i

1. Th no l nhim mi

trng?2. Do u m mi trng b nhim?

sinh vt khc.

- nhim mi trng chyu l:

+ Do con ngi

+ Do t nhin (ni la,thin tai.)

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Bi 54: NHIM MI TRNGI. nhim mi trng l g?-L hin tng mi trng t nhin bbn, ng thi cc tnh cht vt l, hohc, sinh hc ca mi trng b thayi, gy tc hi ti i sng ca conngi v cc sinh vt khc.

-

+ Do con ngi

+ D o t nhin

II. Cc tc nhn ch yu gy

nhim mi trng .

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II. Cc tc nhn ch yu gy nhim.1/ nhim do cc cht kh thi ra t hot ng cng nghip v sinh hot.

Sn xu

t cn n hi

nhimCOCO SOSO

Chy rng un nu trong gia nh

khng kh

Hot ng no sinh ra kh thi gy nhim ?

CO , NOCO , NO22

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Hot ng Nhin liu bt chy

1> Giao thng vn ti:

.

Xng, du,

..

in tip vo bng cc nguyn nhn gy nhim khng kh

2> Sn xut cng nghip:

Than .

..

3> Sinh hot:

..

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Hot ng Nhin liu bt chy

1> Giao thng vn ti:

- t, xe my, tu la

Xng, du, than .

>- My cy, my ba, my gt, myko

.

3> Sinh hot: un nu, ch bin thcphm

Kh t , than, ci, rc thi, rm r

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Bi 54: NHIM MI TRNG

I. nhim mi trng l g.

II. Cc tc nhn ch yugy nhim.

1/ nhim do cc cht kh thi ra t hot ng cngn hi v sinh ho t.

? K tn nhng hot ngt chy nhin liu ti gia

- Cc cht thi ra t nh my,phng tin giao thng, unnu sinh hot sinh ra cc kh

nh: CO, CO2 , SO2, NO2 v bi gy ra nhim khngkh.

n em v ng x m cgy nhim khng kh?

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un nu trong gia nh

t ng

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Bi 54: NHIM MI TRNG


II. Cc tc nhn ch yu gy nhim.

1/ nhim do cc cht kh thira thot ng cng nghip vsinh ho t.

- Cc cht thi ra t nh my,phng tin giao thng, un nusinh hot sinh ra cc kh nh: CO,CO2 , SO2, NO2 v bi gy ra nhim khng kh.

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15/47

Hoa chat baove thc vat

Chuyen thanh hi

*Cac chat oc (hi) theo ma tch tu trong ato nhiem mach ncngam

* Cac chat oc (hi) theo ma ao song bientch tubc hi

vo khng kh

*Ha cht cn bm v ngm vo cthsinh vt

Con ng phat tan cac hoa chat bao ve thc vatva chat oc hoa hoc.

chuyenBoc hiBoc hi

Tch tu trong at O nhiem nc ngam

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My bay Mri cht c mu da cam Vit Nampd f Machine



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Bi 54: NHIM MI TRNG


II. Cc tc nhn ch yu gy nhim.

1/ nhim do cc cht kh thira thot ng cng nghip vsinh ho t.

- Tc hi: nh hng tih sinh thi, gy c chocon ngi v cc sinhvt khc .

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Nn nhn cht c mu da cam...Nn nhn cht c mu da cam...

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Bi 54: NHIM MI TRNGI. nhim mi trng l g.

II. Cc tc nhn ch yu gy nhim.1/ nhim do cc cht kh thira thot ng cng nghip vsinh hot.


3/ nhim do cc cht phng x

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? Cht phng x c ngun gc tu?

Nh my in nguyn t Thv kh ht nhn.Khai thc qungtitan.

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Nh my in ht nhn Fukushima b npd f MachineI s a pdf wr i t e r tha t produces qua l i ty PDF f i les wi th ease!


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Chien tranh bom nguyen t va hau qua chien tranh Nhat

Nagasaki b bo bomNagasaki b bo bom

Sang thanh bnh aSang thanh bnh a

Quang canh sau nem bomQuang canh sau nem bomNagasaki bien matNagasaki bien mat

Nhng g con sot laiNhng g con sot laipd f Machine



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Cht phng x vocth ngi bngcch no?

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C b nhim cht phng x

B n c

Ngi ung sa b nhimcht phng x

Con ng phat tan chat phong xa xam nhap vaoCon ng phat tan chat phong xa xam nhap vaoc the ngi thong qua an uong nh the nao ?c the ngi thong qua an uong nh the nao ?

Sa b b nhim cht phng xpd f Machine



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? Em hy nu hu qu do nhim cc cht phng x

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Bi 54: NHIM MI TRNG

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Bi 54: NHIM MI TRNG

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Bi 54: NHIM MI TRNG

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Bi 54: NHIM MI TRNG

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Bi 54: NHIM MI TRNG

I. nhim mi trng l g.II. Cc tc nhn ch yu gy nhim.1/ nhim do cc cht khthi ra t hot ng cngnghip v sinh hot.

? Nguyn nhn ca ccbnh giun sn, st rt, tl.

Tr li: Do thi quen v lisng thiu v sinh, thc nnu khng chn, khng rasch c mang mm bnhnh giun u trng sn? Cch phng trnh bnh strt?

2/ nhim do ha cht bov thc vt v cc cht cha hc




Tr li:

Phng bnh st rt:dit bgy, gi cho ni thong

ng sch s, gi v sinhngun nc, i ng phi mcmn.

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I, nhim mi trng l g.II. Cc tc nhn ch yu gy nhim.1/ nhim do cc cht kh thira t hot ng cng nghip vsinh hot.

Sinh vat gay benh vao cthe ngi do mot so thoiquen sinh hoat nh : an





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(?) Nhim v mi hc sinh phi lm g hn ch nhim mi trng?

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