Answer:
The principal types of such instruments, classified by the method of producing sound, are percussion, stringed, keyboard, wind, and electronic
Answer:
anchor
The answer to the riddle is an anchor. An anchor is a heavy object attached to a chain/cable and used to moor a ship to the sea bottom. An anchor is something you throw out when you want to use it. And you take in when you don't want to use i
Explanation:
The answer to the riddle is an anchor. An anchor is a heavy object attached to a chain/cable and used to moor a ship to the sea bottom. An anchor is something you throw out when you want to use it. And you take in when you don't want to use it
B, they analyse any faults in the product to try and make a better final design which will then be built
