2. A simplified composition for printed circuit boards is listed in Table 3. If each printed circuit board is 35g, What is the total resource depletion (see Table 4) of non-fossil resources per circuit board (in in both kg of each material and total kg Sbe)? Table 3: Printed Circuit Board Material Content (by percent mass) Material Percentage (by mass) Copper 30% Iron 8% Aluminum 2% Polyethylene 30% SiO2 30% Table 4: Resource Depletion Conversion Factors Material Copper Iron Aluminum Polyethylene Si O kg Sbe 1.37 103 5.24 108 1.09 109 N/A 1.4 1011 N/A