Q1. Assume that the rate of sea-floor spreading was constant during the 1-million-year period depicted above, what have to be the approximate age of marine fossils found in undisturbed sedimentary rock instantly overlying the igneous rock at the arrow labelled “II”?

Q2. Two individuals are the same age, sex, and ethnic background. While being tested for their BMR, Bill consumes 20 litres of oxygen/hour and Randy consumes 16 litres of oxygen/hour. Which of the two needs to consume the most calories in order to maintain proper health and constant weight?