Physique - eau Flashcards

1
Q

3 réservoirs

A

atmosphère, continent, océan

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2
Q

atmosphère

A

couche gaz 500 km
azote 78%
oxygène 21%
argon, gaz carbonique

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3
Q

couches atmophère

A

thermosphère
mésosphère
stratosphère
troposphère

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4
Q

taux humidité

A

quantité vapeur eau dans air

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5
Q

formation nuages

A

air saturé en vapeur eau
vapeur devient liquide
nuages

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6
Q

types nuages

A

cumulus = haut
cirrus = filamenteux
stratus = étalement
nimbus = précipitation

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7
Q

pourquoi substance soluble

A

dépend polarité molécule
polaire : pôle + et -
les pôles s’attirent = mélange
# apolaire

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8
Q

eau dure

A

+ de minéreaux

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9
Q

qualité eau

A

quantité sel, ph, présence polluants, engrais

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