Due to the external atmospheric pressure. Initially the pressure inside the can is balanced by the atmospheric pressure. But as the air is removed from inside, the external pressure dominates.
Answer:
work in hard labors and farms, used as servants and house cleaners. Many slaves living in cities worked as domestics, but others worked as blacksmiths, carpenters, shoemakers, bakers, or other tradespeople. Often, slaves were hired out by their masters, for a day or up to several years. Sometimes slaves were allowed to hire themselves out.
Explanation:
He was looking at Uranium Salts
The Great Depression was a time in history it began with the us stock market crash and didn’t end till 1946 banks failed, unemployment arose, international trade collapsed, hunger increased too. Those are some facts to help you out :)
When two sides are willing to trade surrender or put together their differences for a alliance or merely when personal feelings are involved. This is how it starts. Then keeps going back and forth until both sides are satisfied.
