Name 2 pieces of evidence about sea-floor spreading.

Sediments with an extraterrestrial origin are called: a. cosmogenous. b. hydrogenous. c. biogenous. d. volcagenic. e. lithogenous.

An ecosystem is defined as the interrelationship between living beings and environment. true false

How did the line of demarcation affect settlement of south america A. portugal got the southern part; spain got the north B. spain got the east coast of brazil then moved over the centuries to take over what became modern brazil C.

The louisiana purchase stretched between which two boundaries

Most igneous rocks are primarily composed of: sulfate minerals sulfide mineras

What types of areas are created by sinking, dry air at 30 degrees north or south latitude?

The us congress passage of the Homestead act in 1862 can be considered a pull factor that caused people to migrate to the us

Name the river that forms a border between the states of washington and oregon

Match the city in column 1 to its description in column 2. A. Shenzhen B. Tianjin C. Nanjing D. Guangzhou Located near Beijing; has agriculture and manufacturing. Former capital of China with rich history and culture; large manufacturing center.

Mengapakah delta terbentuk di muara sungai