Radioactive isotopes are used to

a.

determine the absolute age of rocks.

c.

determine how rocks are formed.

b.

determine the relative age of rocks.

d.

determine how rocks are changed.

What is a tool that shows the relationship between distances on a map and actual distances

What occurs because earths revolution requires 365.25 days?

How have internal and external shaped population patterns in Northern Europe

Measuring 1,885 miles long, the Rio Grande River is one of the largest rivers in North America. true or false

What specific geographical feature traditionally divides European Russia from Asian Russia?

What is a symbol a. A specific icon used to indicate a feature such as rocks b. A specific icon used to indicate a feature such as letters c. A table defining the colors letters and keys such as rocks d.

A materials demonstrating low to heat conduction would be categorized under which property catagory? Electrical Thermal Optical Magnetic Mechanical

What is other name given to el nino

N 1991, what prompted a huge uprising in the Balkans causing ethnic squabbles and general tension?

Factors that contribute to people becoming refugees?