Which is NOT one of the three methods used to estimate the age of the Earth? A. the rate of sedimentation B. measurements of the rate of decay in radioactive materials C. measurements of the number of rings in tree trunks D. measurements of the saltiness of the ocean

Under the feudal system, which of the following did lords grant to their vassals?

What did the department of housing and urban development do during the 1960s as part of johnson’s great society?

Which of the following actions best shows how a historian would study the historiography of the french revolution? o a. reading about how earlier historians wrote about the french o b. creating a map of the important events of the french revolution o c. writing an unbiased history book about the french revolution's revolution leader o d. placing key events of the french revolution in chronological order