The main tools used by central bank to control money supply include reserve requirements, discount rate, open market operations. Reserve requirements are amounts that the banks are required to keep, discount rate is the rate at which it lends banks while open market operation are ways through which it controls liquidity by buying and selling of treasuries. Changes in money supply affect liquidity and the level of economic activity
The correct option is Half of the plants that grow there are edible.
Animals are attracted to the African Savanna because it provides them with sustenance. Half of the plants that grow are edible and therefore a source of food which supports the wider ecosystem
The Supreme Court case, "Dred Scott v. Sandford", was a case concerning his personal freedom. Dred Scott argued that since he lived in a free state with his master, he was entitled to emancipation. The case reached the Supreme Court, where it was ruled that no blacks, whether free or owned, could claim US citizenship, which fueled an outrage that led to the Civil War.
C) increase the money supply
Monetarism sees careful control of the money supply as the key to maintaining a stable economy. The ideas of monetarism were first put forth by economist Milton Friedman, who believed that those in charge of the money supply in a society should focus on maintaining price stability. Having too much cash in circulation stimulates inflation. However, in regard to your particular question, during a recession prices stagnate or decrease and interest rates are forced to drop as well. Monetarists would see an increase in the money supply as a way to turn prices back upward during a recession.