What are guidance techniques?
a. ways to make your staff confident
b. ways to reflect on your teaching
c. ways to children form a line
d. ways to promote good behavior

Among the following environmental factors, which does not have a long-term impact on the composition of a region's soil? a. kinds of crops grown b. types of fungi present c. topography of the landscape d. variety of species of mammals e. number of freezes occurring annually