A. Answer the following questions briefly: 1. What is an alloy? How did the discovery of iron help early man?
2. Who invented the steam engine? What was its use?
3. What do you mean by Industrial Revolution? What were its effects?
4. Name any three alternate sources of energy.
5. What is biogas? How is it used?​

Script

Explanation:

Script, in Psychology, is a form of general memory that seem like a template of a pre-existing knowledge of typical activities that follows a sequence. We use script to recall information of actions that occur in sequence in events that seem like a routine.  

For example, Maria, rough script memory, was able to recall the sequence of events and what she must do when she attended mass which was like a routine event. Her ability to build accounts of these sequence of events was due to script memory.