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Why is the Columbian Exchange called a tsunami of biological exchange?

The Columbian Exchange is called a tsunami of biological exchange because of the profound impact it had on the transfer of plants, animals, diseases, and cultures between the Eastern and Western Hemispheres after Columbus's voyages. Like a tsunami, it brought about widespread and irreversible changes to the ecological and cultural landscapes on both sides of the Atlantic.


How fast do Tsunamis travel in the Pacific Ocean?

Tsunamis can travel at speeds of up to 500 to 600 miles per hour (800 to 970 kilometers per hour) in the open ocean, which is comparable to the speed of a jet plane. However, their speed decreases as they approach shallow waters near coastlines, causing them to slow down and increase in height.


What is the most complex incident type?

Five


What is ecological succesion?

Ecological succession is a fundamental phenomenon of ecology. It refers to progressive succession from unstable community to stable community. Initiation of succession is by a) formation of new inhabited area - volcanic eruption; wash out by tsunami etc. b) natural and man made calamities - fire Succession is of two types: Primary - from newly formed soil & secondary - from already existing soil. Ecological succession refers to the orderly and gradual process in a given ecosystem.


What are the positives and negatives of having a nuclear power plant in your town?

The advantages of nuclear power:High energy density. Much more energy results from a small piece of fuel.Environment. No carbon dioxide emissions causing global warming (unlike fossil fuels). All waste (under under the vast majority of circumstances) is contained and removed from the environment.A long fuel cycle. Military cores last 30 years before needing to be refueled. Civilian cores require refueling every 18-24 months.The disadvantages of nuclear power:The problem of how to transport and store the dangerous radioactive waste safely.The risks of a dangerous accident or terrorist attack at the nuclear power plant.The safety risks in mining and transporting the radioactive fuel.The risks of theft of material, possibly for a nuclear bomb.Very expensive to build. It can take many years to create a nuclear plant.A Long AnswerAdvantages:Nuclear power produces fewer carbon emissions than most othertraditional energy sources. The production of energy does not come from burning molecules but from splitting atoms.Nuclear plants provide baseload power. Under normal operation the plant produces power at a constant rate. Each reactor core typically provides 800-1200MW of power. Many sites have more than one reactor.Nuclear power plants don't require a lot of space. As the reactor cores are very energy dense.Nuclear plants do not produce smoke particles to pollute the atmosphere.Nuclear energy is by far the most concentrated form of energy; a lot of energy is produced from a small mass of fuel.The fission products (aka nuclear waste) created during a normal fuel cycle make up

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