Exactly 1.5g of soil is saturated with 100 ml of 1 m kcl. at the end of the saturation, the solution is analyzed, and the following results obtained: ca = 0.50 mg/l; mg = 1 mg/l; na = 1.5mg/l; al = 2 mg/l. if this represent all of the exchangeable ions that were initially on the soil, what is the cec and base saturation in men/100g?

b. examine and describe cells

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.