Search

Search results

Displaying 51 - 60

rift valley

(Encyclopedia) rift valley, elongated depression, trough, or graben in the earth's crust, bounded on both sides by normal faults and occurring on the continents or under the oceans. The central flat…

Vescovo, Victor Lance

(Encyclopedia) Vescovo, Victor Lance, 1966–, American private equity investor and adventurer, b. Dallas, Tex., M.B.A. Harvard, 1994. He was a principal at Lehman Brothers (1991–92), a senior manager…

DK Earth: Earthquakes

WHAT CAUSES EARTHQUAKES? WHAT HAPPENS DURING AN EARTHQUAKE? WHERE DO MOST EARTHQUAKES STRIKE? HOW ARE EARTHQUAKES MEASURED? FIND OUT MOREEarthquakes are vibrations triggered by sudden rock…

Amazing Language Facts

There are more than 2,700 languages in the world. In addition, there are more than 7,000 dialects. A dialect is a regional variety of a language that has a different pronunciation, vocabulary, or…

DK Science: Glossary

Adaptationthe response of a living organism to changes in its environment.Agea unit of geological time, which is characterized by some feature (like an Ice Age).Ambera yellowish, fossilized tree…

Volcanic Seven Summits

Source: iStock From Mount Everest as the highest mountain above sea level to Mauna Kea, the tallest mountain on Earth, there are peaks and summits all around us. Mountains used to be seen as the…

DK Earth: Mountains

HOW ARE MOUNTAINS FORMED? ARE MOUNTAINS STILL GROWING? WHY ARE MANY MOUNTAINS SNOW-CAPPED? MOUNTAINS AT SEA RANGESFIND OUT MOREA mountain is a steep-sided mass of rock, rising at least 2,000 ft (…

Geography Hall of Fame

Largest Continent: Asia, 17,212,000 square miles Smallest Continent: Australia, 3,132,000 square miles Highest Mountain: Mount Everest, Himalayan Mountains, Nepal…

Youngest Ocean on Earth

The Question: What is the youngest ocean on Earth? The Answer: The Atlantic Ocean is the planet's youngest ocean. It was believed to…