SS1 Biology – Tolerance

In today’s class, we will discuss tolerance. Enjoy the class!   Tolerance Tolerance is the ability of living organisms to withstand or tolerate little unfavorable changes in the environment, which

SS1 Accounting – Petty Cash Book

 PETTY CASH BOOK   MEANING:    IMPREST SYSTEM: This is a system for recording petty cash transactions, which are paid out of a cash float. The system is set up

SS1 Chemistry – Coal and Fuel  Gases

CONTENT Coal. Fuel gases/Gasification of coke.   COAL Coal is an impure form of carbon. Coal is a complex mixture of compounds composed mainly of carbon, hydrogen and oxygen with