
Vzduch a voda
Authored by Michala Jandíková
Chemistry
8th Grade
Used 14+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kolik je kyslíku ve vzduchu?
78 %
21 %
10 %
1 %
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kolik je dusíku ve vzduchu?
78 %
21 %
10 %
1 %
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký plyn je uchováván v této láhvi?
kyslík
dusík
vzduch
oxid uhličitý
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Z jakých slov je odvozeno slovo smog?
mlha
kouř
bezvětří
vysoká teplota
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jakou metodou se zpracovává vzduch, pokud chceme jednotlivé složky?
filtrace
destilace
sublimace
sedimentace
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
K čemu se využívá dusík?
uchování biologického materiálu
ochranná atmosféra potravin
plnění balonků
náplň žárovek
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaké množství světové vody využívá člověk?
70 %
50 %
5 %
1 %
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