Which material was used in building the roman roads?

a. gravel

c. stones

b. sand

d. all of the above

What rock type can be described as a mafic volcanic rock that is dark, heavy and appears in hand sample to be hard solid material with abundant tiny crystals of dark minerals that glint and sparkle in strong light? a. Basalt b. Pumice c. Scoria d.

What capital is built on seven hills?

How often does Earth's magnetic field change direction?

How are atoms of gas distributed in a container?

Which type of scientist would study the earth's atmosphere?

What are two factors that influence the gravitational pull of an object?

Which resources are important to the economies of many countries in Siberian Russia, Central Asia, and the Caucasus region? A. oil B. timber C. diamonds D. coal

In a short paragraph, explain the various waves of immigration to the United States. What groups were part of each of these waves?

What is a fault? A. the name for two opposing forces B. a type of crust that moves under heavier crust C. a crack in Earth's crust where movement occurs D. a volcanic region where new material is being created

How many plug-in hybrids does Obama want to see on the road in the next 6 years? 100,000 500,000 1 million 2 million