In a block and tackle system each pulley that you add will all the force to be . 1. decreased
2. increased

Decreased

Explanation:

When you add extra pulleys, the minimum force that is needed to be given off by the person pulling lowers. For example if you have one pulley and pull on it, you require more force to move the object than your friend with two pulleys. He requires half the force that you do to move the object.

not only is it colder, it also becomes darker, less salty, and more dense.

ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )