Answer:
He made the mona lisa and he is great at art and other things he was also great at enginering.
Science allowed us to analyze what had been working, and further allowed the establishment of new technology
Answer:
Checks and Balances
Explanation:
One of the rights of congress is the right to impeach the president if they think he is to tyrannical. Checks and balances itself though is an example of separation of powers
The answer is Sir Francis Drake. He is an English men but had nothing to do with Spain.