. 2. [a] The meteorological and stability concepts are crucial in controlling the impact of air pollution from any stack in the process industries. Discuss the behaviour of the plume that has been released from a stack in the given Elevation- Temperature in Figure Q.2 (a) based on two conditions: (1) without the presence of wind, (2) with the presence of wind (from left to right). Use the knowledge of BOTH stability and temperature concepts that you have leared. Assume perfect adiabatic conditions. 350 300 250 E200 Elevation (m) 20d ( 150 100 50 0 18 19 20 22 23 24 21 Temperature (degC) Figure Q.2 [a] [10 marks)