
L'acqua sulla Terra
Authored by Marco Cernousek
Chemistry
6th Grade
Used 1+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è il nome che prende l'acqua, nella sua totalità, presente nel nostro pianeta?
Idrosfera
Atmosfera
Biosfera
Litosfera
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è la percentuale della superficie terrestre ricoperta dall'acqua?
71%
50%
30%
90%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quant'è la percentuale di acqua dolce dell'idrosfera?
3%
10%
20%
5%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è la salinità media degli oceani?
35 g/l
25 g/l
45 g/l
30 g/l
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Da cosa dipende la salinità di un mare?
Dall'apporto di acque dolci e dalla temperatura
Dalla temperatura
Dall'inquinamento
Dall'altitudine
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'acqua marina è una soluzione il cui soluto è costituito da
anidride carbonica
terra
acqua
sali
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Il sale principale disciolto nell'acqua marina è il
ioduro di potassio
fluoruro di sodio
cloruro di sodio
dicloruro di magnesio
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