DO VOLCANOES HAVE A DESTRUCTIVE POWER AS WELL AS POTENTIAL BENEFIT Volcanoes are usually depicted as towering mountains missing a chunk out of the top from which steam‚ ash and lava spew forth. In reality‚ a volcano is any spot on the surface of the Earth where lava flows. Magma finds its way upwards along fissures or cracks in the planet ’s crust and bursts out onto the surface‚ resulting in a volcano. Magma that flows out of a volcano is called lava. If it comes out of the volcano in an explosive
Free Volcano
Lecture 1: Introduction Geology - the study of the Earth‚ the processes that shape it‚ and the resources that could be obtained from it. Main branches Physical Geology - deals with the materials that comprise the Earth and the processes that affect it (e.g.‚ Volcanology‚ Seismology‚ Environmental Geology‚ Engineering Geology‚ Mining Geology‚ Petroleum Geology‚ Mineralogy‚ Petrology‚ Geomorphology‚ Geophysics‚ Geochemistry‚ Planetary Geology) Historical Geology - the study of the origin and
Premium Plate tectonics
50 SCIENCE TRIVIA 50 Interesting Science Facts 1 – The speed of light is generally rounded down to 186‚000 miles per second. In exact terms it is 299‚792‚458 m/s (equal to 186‚287.49 miles per second). 2 – It takes 8 minutes 17 seconds for light to travel from the Sun’s surface to the Earth. 3 – 10 percent of all human beings ever born are alive at this very moment. 4 – The Earth spins at 1‚000 mph but it travels through space at an incredible 67‚000 mph. 5 – Every year‚ over one million
Premium Names of large numbers Universe
Easter Island is one of the most unusual places on the planet. In A Green History of the World Clive Ponting notes‚ “Easter Island is one of the most remote‚ inhabited places on earth. Only some 150 square miles in area‚ it lies in the Pacific Ocean‚ 2‚000 miles off the west coast of South America and 1‚250 miles from the nearest inhabitable land of Pitcairn Island‚” (Ponting‚ 1991). The extreme isolation of Easter Island or Rapa Nui is not the islands most distinguishing feature. The most interesting
Premium
5 billion years ago the earth came into existence around? 40‚000 years ago modern human beings arrived around? before writing the term ’’prehistory’’ refers to the period before? 1.6% In regard to genetic makeup and body chemistry‚ the difference between humans and apes is? australopithecus as early as five million years ago‚ which of the following flourished in east Africa? "the southern ape" what does australopithecus mean? intelligence and language skills the most important development of
Premium Neolithic Shang Dynasty Human
A Comparative Look at Robert Smithson’s Earth Art and 1960s Minimalism By Marcus Pearson 05/25/10 While walking through the Guggenheim Museum you walk past several different works of art. A nice painting here‚ a cool sculpture there‚ some interesting lights‚ it’s all pretty neat. You then walk into a room with two seemingly opposite types of art. On one side of the room you see a rock pile and a few pictures of some big rocks. The other side has some odd looking sculptures and several paintings
Premium Art Modernism Painting
Chapter 3 Study Guide I.Key Terms Sudanic societies: agriculture took root in Sudan first. The region used to be grassy with lakes‚ rivers‚ and streams. They domesticated cattle and became nomadic herders. After 7500 B.C.E they established permanent settlements. Around 5000 B.C.E Sudanic people had formed small monarchies and developed religious beliefs. “Gifts of the Nile”: Herodotus said Egypt was “the gift of the Nile” because of Egypt’s advantages over the floods from the Nile. With the floods
Premium Ancient Egypt Egypt Nile
Volcanic Materials and Health Concerns Introduction: Basic Geology of Volcanoes A volcano can be a mountain like structure or a wide sloping hill that opens downwards to a pool of molten rock below the surface of the earth. When a break in the earth’s surface allows molten rock material to come up from the earth’s core‚ a volcano is formed. Volcanic eruptions can cause lateral blasts‚ lava flows‚ hot ash flows‚ mudslides‚ avalanches‚ falling ash and floods. These
Premium Volcano
The Haida People of the Canadian Northwest Coast By Shyann Gilmour The Haida people had an extremely complex social organization. They were highly respected by their peers and those they traded with and were feared by those who were at war with them. Their art continues to flourish today and many traditions have survived into today’s world. The Natives of the Northwest Coast have been a group of Natives with the worlds attention‚ while some may stay to look at museum exhibits concerning the
Premium
and developed complex social organizations‚ particularly in the Levant‚ where the Natufian period was established. Natufian people lived in year-round established communities and developed extensive trade systems to facilitate the movement of black basalt for ground stone tools‚ obsidian for chipped stone tools‚ and seashells for personal decoration. The first stone built structures were built in the Zagros Mountains‚ where people collected seeds from wild cereals and captured wild sheep. The Aceramic
Premium Agriculture Neolithic