I believe it's Christiaan (Yes, two a's) Huygens.
Answer:
Bitcoin blockchain
Explanation:
The Bitcoin blockchain is essentially an enormous, shared, encrypted list of all addresses that hold Bitcoin balances. Because this list is shared, it is referred to as a digital distributed ledger technology (DLT).
A social problem is any condition or behavior that has negative consequences for large numbers of people and that is generally recognized as a condition or behavior that needs to be addressed. This definition has both an objective component and a subjective component
Answer:
more living things, better climate or if were talking modern immigration then better life style and better opportunities.
Answer:
what is this I can't understand