Mulla koostis, teke, areng ja mullaorganismid.
Authored by Kairi Peil
Science, Biology
5th - 6th Grade
Used 125+ times
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27 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Mis on muld?
Maakoore alumine kobe kiht.
Maakoore pindmine kobe kiht.
Maakoore keskmine hõre kiht.
Maakoore sügav kiht.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Mullas on kõige rohkem...
orgaanilisi aineid
vett
õhku
mineraalaineid
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Mullas on kõige vähem...
õhku
vett
orgaanilisi aineid
mineraalaineid
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Mulla teke algab
eluorganismide lagunemisega
lähtekivimi murenemisega
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Mida nimetatakse murenemiseks?
mulla lagunemine
huumuse tekkimine
kivimite lagunemine
vee voolamine
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Ained, mis on mulda sattunud kivimite lagunemisel, on ...
huumus
orgaanilised ained
muld
mineraalained
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Mida teevad mullas bakterid?
tarbivad
lagundavad
toodavad hapnikku
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