Q1. A late autumn rain falls equally over a catchment at a rate of 9cm/hr for two hours. Mean soil infiltration rate for the catchment is constant at 7cm/hr. The catchment is 2ha in size. How much overland flow is produced by this precipitation event within catchment?

Q2. Describe the process of muscle contraction and how a neuromuscular blocking agent, as in metubine, would interfere with muscle contraction.