What most likely caused the steady increase in price per barrel of oil between 2001 and 2008?

Does anyone know any similarities between 15th century Europe and 15th Century America?

A teacher believes that her students will perform better on a test if they receive extra feedback on their homework. To test this idea, she randomly assigns half of her students to get extra feedback.

A negative attack against an opponent in debate is called

Who won the prize offered by the British parliament for solving the longitude puzzle

Martin is 14 months old. His father made a funny face at Martin, causing Martin to giggle. An hour later, Martin made the same face to his mother, hoping for the same reaction. What phenomenon has taken place?

Colonist who wanted to keep the king in charged

Which Challenges is Brazil currently addressi

According to campbell's model of job performance, which of these is the best example of maintaining personal discipline?

Who forms the zilla parishad

Independent identification of core problems is known as