Ako u vodi pliva pastrva i rak znak je da je voda

Onečišćenje voda

Quiz
•
Science
•
6th Grade
•
Medium
Mira Štimac
Used 1+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
umjereno čista
Čista
onečišćena
posve onečišćena
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bioindikatori su
deterđenti
gnojiva
organizmi koji pokazuju kvalitetu vode
organizmi koji pokazuju količinu vode
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ako je morska voda onečišćena razviju se
zelene alge
smeđe alge
crne alge
bijele alge
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dušik i fosfor dospijevaju u otpadne vode iz
zraka
iz hrane
od lijekova
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Povećana količina dušika i fosfora potiču rast
riba
ptica
algi i vodenih biljaka
školjki
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Iscrpljivanje kisika zove se
enormifikacija
multifikacija
elektofikacija
eutrofikacija
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mehaničko pročišćavanje otpadnih voda provodi pomoću
mikroorganizama
kemikalija
mreža i sita
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nakon pročišćavanja otpadnih voda ostaje
kamen
zemlja
voda
mulj
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