SS1 Chemistry – Cracking and Reforming

CONTENTS (iii) Cracking of petroleum (thermal and catalytic) (iv) Antiknock and Octane rating   CRACKING: Cracking is the process use in breaking down large hydrocarbon molecules into two or more

SS2 Agric. Science – Crop Improvement

SS2 Biology – Tissue and Supporting System

TISSUE AND SUPPORTING SYSTEM Contents Introduction Forms of Skeleton Types of Skeleton Functions of the Skeleton Support in Vertebrates   INTRODUCTION To carry out life processes, all organisms (plants and