Randomization is the process of making something random; in various contexts this involves, for example: generating a random permutation of a sequence (such as when shuffling cards); selecting a random sample of a population (important in statistical sampling
Answer:
five contribuations is Papermaking, printing, gunpowder and the compass and "bo" also known as silk
1. gunpowder
2. bronze
3.printing also early chinese writing
4.compass and navigation
5. silk making
i ranked them from the top useful
Explanation:
How they draw the characters on the computer and how the make a 3d affect
To mail a letter from LA to portland, it takes approximately 15 hours