How to tell the difference between indica and sativa.

Why do we learn how to calculate the distance of a parabola in 10th grade but not what a 401k is?

What are the components of an effective weight-training program? a. conditioning, progression, generalization, overwork, balance, and recovery b. overload, progression, specificity, regularity, recovery, balance, and variety c. overwork, coordination, motivation, conditioning, regularity, and variety d. consistency, progression, rest, regression, balance, and specificity

In this model, what do p, s, and a bases represent?