Which of the following best approximates the percentages of sand, clay, and silt in a sandy loam? use the soil texture table below to answer.

select one:
a.
sand 40
clay 30
silt 30

b.
sand 60
clay 10
silt 30

c.
sand 25
clay 15
silt 60

d.
sand 20
clay 60
silt 20

The answer is b. 
Sand 60
Clay 10
Silt 30
Sandy loam should be dominated by the sand. As the amount of sand increaed, the amount of slit needed to anchor the plants' roots to the sand will also be increased. Even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.