28. In the 19th century, it _ two or three months to cross North America by covered wagon. The trip - very rough and often dangerous.

a. took / was

(b, had taken / had been

c. took / had been

d. had taken / was

Which of the following is a benefit of scientists studying seismic waves?

When considering the country of bhutan, indicated by the red arrow, which geographic feature would be most likely to affect people there? a. gobi desert b. himalaya mountains c. hindu kush mountains d. ganges river flooding?

What region is Israel in

The core of the sun is 27 million degrees. A. True B. False

How are plants alike and different from their parents

What environmental problem results from draining oil that had been underground? A:subsidence B:channels C:processing D:conservation

Why does north Korea think they are superior

The northern portion of Canada is covered by boreal forests which are characterized by

Eventually became the capital of Russia

Which type of earth scientist was most receptive to Wegener's ideas? A. Seismologists (earthquakes and deep earth) B. Petrologists (igneous rocks) C. Geomorphologists (landscape shapes) D. Paleontologists (fossil organisms)