Answer:D
Explanation:
None of the answers explain it concisely but they need rules so that when they are doing research all procedures are the same so that results are consistent and verifiable.
Answer:
When there is a surplus. Obviously the producer/seller has more of the item than the consumer/buyers want or need. Therefore, they (producers) are reducing the price to unload the item. A surplus tends to cause prices to fall.
Explanation:
He ran for political office
Federal judges serve a life term
they serve until their death, retirement, or conviction by the Senate.