Welcome back Y11 LS students. It is time for us to pick up the loose ends from before our special vocation!

Data analysis (table, bar chart, pie chart) is a starter for any LS question, so it is worth doing them often. This question asks you to compare the carbon monoxide level of the two given days, so do not forget to calculation differences and their percentage changes! 

You should have completed your in-class test by now.

Next, you should make up for this question given to you on 10-Mar, which is taken from a PP paper in 2013 (2013 PP P1Q1). 

From this question, you learn how to evaluate if a policy is a 'toothless tiger' or not.  The criteria for your evaluation should be whether the policy is or can be enforced or whether the policy has a deterrent effect.