•Features ◊Questions set in line with the HKDSE syllabus ◊Covers explanatory questions which are commonly tested in the HKDSE ◊Includes some F.1-F.3 topics that are often overlooked ◊Questions are classified by topics and ordered in an ascending level of difficulty ◊Serves as a handy and quick revision tool for F.4-F.6 students ◊Detailed answers provided for easy reference