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SCSC 301 Exam 2 Correct 100%

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ability of liquid to flow in narrow spaces without or opposing gravity - ANSWERcapillary movement attraction of water molecules to itself - ANSWERcohesion attraction of water molecules to solid surfaces (soil, glass) - ANSWERadhesion capillary movement in soil is due to? - ANSWERadhesion/cohesion force of gravity on water pulling it downward - ANSWERgravitational force

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SCSC 301 Exam 2 Correct 100%
ability of liquid to flow in narrow spaces without or opposing gravity -
ANSWERcapillary movement

attraction of water molecules to itself - ANSWERcohesion

attraction of water molecules to solid surfaces (soil, glass) - ANSWERadhesion

capillary movement in soil is due to? - ANSWERadhesion/cohesion

force of gravity on water pulling it downward - ANSWERgravitational force

water always moves from - ANSWERHIGH to LOW water potential (wet to dry)

where does matric potential occur? - ANSWERin micropores

how does matric potential cause water to move? - ANSWERmove in any direction
from wet to dry


is there greater capillary movement in sandy or clay soils? - ANSWERclay - moves
slower but farther

sand - moves faster but short distances

attraction of water to soil solids - ANSWERmatric force (capillary force)

attraction of water to ions and other solutes - ANSWERosmotic force

when ALL soil pores are filled with water - ANSWERsaturated

maximum water before ponding/flooding - ANSWERsaturated

saturated kPa - ANSWER0

% of water that remains once water has drained due to gravitational flow -
ANSWERfield capacity

how does osmotic potential cause water to move? - ANSWERmoves from low
solutes to high solutes

total soil water potential equation - ANSWERTotal = Gravitational + Matric + Osmotic


macropores are filled with air and not water - ANSWERfield capacity

field capacity kPa - ANSWER-10 to -30 kPa

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