Learningismypassion

                          ALLOYS The meaning of the term 'alloy' is  a substance formed from the combination of two or more metals . PROPERTIES OF ALLOY Alloys are  stronger, harder, more durable, and sometimes more corrosion-resistant than their pure metal. Corrosion resistant  Corrosion resistance can be defined as  the ability to protect the substrate from corrosion .

  CONSTRUCTING A DICHOTOMOUS KEY Step1: Think of a way you can split the organisms into two groups like its has legs or not etc. Step 2: According to the answers branch the key into two, again ask another question to identify another organism. Step 3: Continue till you identify all the organisms. Look at the given organisms and construct a dichotomous key by mutually discussing with your group members.