PSAT stands for Preliminary SAT, where SAT is the Scholastic Aptitude test. It is a standardized test that allows for a nation-wide comparison of students. The results of the test are relevant for the National Merit Scholarship program.
Trench warfare is a type of land warfare using occupied fighting lines consisting largely of trenches, in which troops are significantly protected from the enemy's small arms fire and are substantially sheltered from artillery. The most famous use of trench warfare is the Western Front in World War I. It has become a byword for stalemate, attrition, sieges and futility in conflict.
Trench warfare occurred when a revolution in firepower was not matched by similar advances in mobility, resulting in a grueling form of warfare in which the defender held the advantage.[2] On the Western Front in 1914–18, both sides constructed elaborate trench and dugout systems opposing each other along a front, protected from assault by barbed wire, mines, and other obstacles. The area between opposing trench lines (known as "no man's land") was fully exposed to artillery fire from both sides. Attacks, even if successful, often sustained severe casualties
The Federal Reserve System has a two-part structure: a central authority called the Board of Governors in Washington, D.C., and a decentralized network of 12 Federal Reserve Banks located throughout the country.
Answer:
History has no natural divisions. A woman living in Florence in the 15th century did not think of herself as a woman of the Renaissance. Historians divide history into large and small units in order to make characteristics and changes clear to themselves and to students. It’s important to remember that any historical period is a construction and a simplification. Below are some important basics to get you started.
As you read the timeline below, please keep in mind that equally momentous developments have occurred in Africa, Asia, the Americas and in the Pacific.
Prehistoric (before c. 3000 B.C.E.)
Explanation:
I think the answer is d because all of the other answers are in the business to make money for investors except for d.