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Chechnya

Last modified by Driving Directions on 01/25/2021

One of the republics that remains a part of Russia after the collapse of the Soviet Union despite independence movements and violent upheaval.

Google Maps™ driving directions home » Glossary

Chemical weathering

Last modified by Driving Directions on 01/25/2021

A process that changes rock into a new substance through interactions among elements in the air or water and the minerals in the rock.

Google Maps™ driving directions home » Glossary

Chemocline

Last modified by Driving Directions on 02/01/2021

The boundary between lower, carbon dioxide-laden waters and higher, gas-free, fresh water in some African lakes. The puncture of this boundary can cause fatal eruptions to humans and other life around the lakes.

Google Maps™ driving directions home » Glossary

Chernobyl

Last modified by Driving Directions on 02/01/2021

Ukraine, the site where, in April 1986, the worst nuclear power plant accident in history occurred.

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Chernozem

Last modified by Driving Directions on 02/01/2021

Black topsoil, one of the world’s most fertile soils.

Google Maps™ driving directions home » Glossary

Chestnut soils

Last modified by Driving Directions on 02/01/2021

Productive soils are typical of the Russian steppe and North American Great Plains.