14. which of the following describes chemical weathering?
o a. acid rain dissolves minerals within a rock.
o b. plant roots expand cracks within a rock.
o c. the removal of overlying material decreases pressure on an underlying rock.
o d. salt crystals grow in the cracks and pores of a rock.

A.

Explanation:

Acid is a type of chemical and in this case it is in the weather (the rain) Thats chemical weathering!

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, 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.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.