[Students: Please create yourself a little Excel sheet for calculating AFS and HFS. These are sort of tedious calculations that you will have to do many times]. Just underneath the fresh litter-layer on the forest floor of a Spodosol, is an O horizon that is 2.2 inches thick. This O horizon is dominated by well-decomposed soil organic matter (SOM), and the SOM content of this O horizon is 92.2 % by weight. Further data indicate this soil organic matter contains 5.3 % nitrogen (N) by weight. What is the approximate weight (in pounds N) of nitrogen in the organic matter of the AFS for this O horizon that is 2.2 inches thick, with a bulk density of 0.52 grams per cm3 (43,560 square feet per acre, 62.4 pounds per cubic foot of water)

step-by-step explanation: noo

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.