The salient features of the book are: v The main topics covered in the chapter have been listed under the head ‘In This Chapter’ on the chapter opening page. v In each chapter, the text matter is supported by: l Check Points: They include some simple questions to check the understanding of the concepts studied so far. l Summary: It includes the main points of the chapter for quick revision. l Illustrative Questions: They include various types of solved questions. Section A contains objective type questions such as one-word answer questions, true/false, fill in the blanks, match the columns, etc. and Section B contains solved short answer type questions in accordance with different competencies as defined by CBSE for the assessment of students. l NCERT Textbook Solution: It contains complete solution of In-text activities, In-text questions and Chapter-end exercises of NCERT textbook. l Solution of NCERT Exemplar Problems: It provides complete solution to the relevant questions of ‘nCert EXEMPLAR PROBLEMS’. l Practice Questions: This section includes a large number of unsolved questions such as MCQs, Assertion-Reason Type Questions, Paragraph/Graph/Data-based Questions, Very Short Answer (VSA) Type Questions, Short Answer (SA) Type Questions and Long Answer (LA) Type Questions for practice. v Special sections on Worksheets for NTSE and Art Integrated Learning (AIL) Activities have been included at the end of the book.