Land that water flows across or under on its way to a river is called

Where in the world can volcanic mountains be found

Which factors have reduced air pollution in Western Europe? Choose all that apply. agricultural intensification catalytic converters cleaner burning fuels improved engines metering water use

Name four negative effects of migrant workers

Which region of Oceania was greatly affected by European colonization forced slavery and deadly diseases

Which of the following is a way in which surface mines impact an environment ecologically? a. soil erosion b. introducing new species of flora and fauna c. creation of groundwater systems d. all of the above

Which gas is inferred to have been absent from earth's atmosphere during the early Archean era

anout 140000 japanese died in this japanese coty when americans dropped an atomic bomb at the end of world war 2

Why is it significant that san martin resigned from the spanish army

What is the most important role of the ecosystems of the Andes?

Match each moon or planet to the most accurate characteristic. A. Earth's moon B. Venus C. Europa D. Mars 1. It contains large amounts of frozen water 2. The temperature of its atmosphere is increased by high levels of carbon dioxide 3.