
Keskkonnaprobleemid
Authored by Maarja Kruus
Chemistry
9th Grade
Used 3+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vali õige lauselõpp.
Keskkonna saastumine on ...
kahjulike ainete sattumine keskkonda metsloomade elutegevuse tagajärjel.
kahjulike ainete sattumine keskkonda loodusnähtuste tagajärjel.
kahjulike ainete sattumine keskkonda inimtegevuse tagajärjel.
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Väävli ja lämmastikuoksiidid on (happelised/aluselised/neutraalsed) oksiidid, mis õhku sattudes põhjustavad happesademeid.
3.
MULTIPLE SELECT QUESTION
1 min • 3 pts
Märgi ained, mis põhjustavad happesademeid.
CH4
NO2
SO2
CO
NO
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Märgi tegevused, mille tagajärjel moodustuvad happesademed.
Fossiilsete kütuste põletamine tööstuses.
Fosfor- ja lämmastikväetiste kasutamine.
Vulkaanipursked.
Elavhõbeda ja kulla kaevandamine.
Fossiilsete kütuste kasutamine automootorites.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Osoonikiht on atmosfääris oluline, sest ...
osoon aitab lagundada ohtlikke keskkonda saastavaid aineid.
see takistab oluliselt kasvuhooneefekti ja kliima soojenemist.
osoonikiht neelab ultraviolettkiirgust, mis on elusorganismidele kahjulik.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kasvuhooneefekt tekib, kui
soojusenergia hajumine maailmaruumi on takistatud ja soojus koguneb.
kasvuhoonegaasid moodustavad atmosfääris tiheda kihi, mis ei lase soojust läbi.
Maa pinnalt kiirguv soojusenergia hajub maailmaruumi.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Märgi kasvuhoonefekti põhjustavad gaasid.
H2
CO2
CH4
H2O
Ar
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