Europeans, North Americans, and East Asians changed the natural history of the Pacific islands by introducing exotic crops and animals. List some examples:
arrowroot and cassava
bananas
tropical fruits
mangoes
pineapples
papayas
citrus
coffee and cacao
sugarcane
cattle
goats
poultry
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Along with the pH scale, there is the pOH scale, which indicates the level of "basicity" in a solution. Accordingly, pOH = -log[OH-]. What is the sum of the pH and the pOH of a solution always equal to?
A) the negative of the product of the hydronium and hydroxide ions B) the negative log of Kw, which is 14 C) The sum would equal 7, since that would be neutral for pH and pOH. D) It is not constant because it depends on the acid/base solution in question.
Much of the catastrophic damage done by Hurricane Katrina was caused by a storm surge arriving near high tide
a. True b. False
What does the HDI (Human Development Index) measure?
a) The gross national and gross domestic products b) Physiological growth rates of impoverished children c) The extent of human misery that results from poverty and environmental problems d) Quality of life indicators such as literacy, life expectancy, standard of living and purchasing power
One of the measures of biodiversity is the number of:
A. Unpaved roads in an area B. Migration routes in an area C. Different species in an area D. Rivers in an area