Answer:
Actually the economy today of the USA is very good compared 50 years ago.
Explanation:
Answer:
Mechanical advantage of block and tackle
Explanation:
A block and tackle is characterized by the use of a single continuous rope to transmit a tension force around one or more pulleys to lift or move a load. Its mechanical advantage is the number of parts of the rope that act on the load. ... Thus, the block and tackle reduces the input force by the factor n.
Answer: I believe this is FALSE.
Explanation: I say this because, although photosynthesis is required to keep the plants alive which causes respiration. It is not objectively needed in the cycle, and it isn't caused by animals.
I hope this helps :D.