Question

1g of ice at 0°C is mixed 1g of steam at
100°C. The mass of water formed

Answer 1

Answer:

History is the study of the past. Events before the invention of writing systems are considered prehistory. "History" is an umbrella term comprising past events as well as the memory, discovery, collection, organization, presentation, and interpretation of these events.

Answer 2

Answer:

Trade is a basic economic concept involving the buying and selling of goods and services, with compensation paid by a buyer to a seller, or the exchange of goods or services between parties. Trade can take place within an economy between producers and consumers.