Author name: sumkhur Boro

Chapter 6: Tissues Intext Questions: Question 1: What is a tissue?Answer: Tissue is a collection of cells with comparable structures […]

Chapter 5: The Fundamenta Unit of Life Question 1: Who discovered cells and how?Answer: Cells were discovered by Robert Hooke

Chapter 4: Structure of the Atom Intext Exercise 1 1. What are canal rays?Answer: Canal rays are beams of positively

Chapter 3: Atoms and Molecules Intext Exercise 1 Question: In a reaction, 5.3g of sodium carbonate reacted with 6g of

Chapter 2: Is Matter Around Us Pure Excercise 1: Question 1: What is meant by a pure substance?Answer: The type

Chapter 1: Matters In Our Surroundings Excercise 1: Question 1: Which of the following are the matter?Chair, air, love, smell,

CHAPTER 12 Exercise 12.1: Question 1: A survey conducted by an organisation for the cause of illness and death among

CHAPTER 11 Exercise 11.1: Question 1: Diameter of the base of a cone is (10.5space cm) and its slant height

CHAPTER 10 Exercise 10.1: Question 1: A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side ‘a’.

CHAPTER 9 Exercise 9.1: Question 1: Recall that two circles are congruent if they have the same radii. Prove that