What effect can topography have on the spreading of a fire? What are the dangers of being upslope during a fire?
What will be an ideal response?
ANSWER: Canyons can funnel air, accelerate the fire, and cause more rapid spreading; fires move upslope faster than they move downslope. At a ridge top, fire often slows dramatically because the rising flames run out of fuel. A fire reaching a ridge crest can create an updraft of air from the far side that fans the flames, but the same updraft can reduce the chance that the fire will move down the other side.
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By 2020 what will the regulatory standard for gasoline mileage of automobiles in the United States be?
A) 22 miles per gallon B) 35 miles per gallon C) 33 miles per gallon D) 27.5 miles per gallon E) 30.5 miles per gallon
The term miscible is applied to which of the following solvent/solute combinations?
A) liquid/gas B) liquid/liquid C) liquid/solid D) none of these
When did the harvesting of commercial whale species cease?
a. When the International Whaling Commission formed b. When there were substitutes for the products produced from whales c. When the hunting of whales became uneconomical d. CITES- Convention on the International Trade of Endangered Species
When a hydrogen atom (the positive end) in one water molecule is attracted to the oxygen atom (the negative end) of an adjacent water molecule, a covalent bond forms
Indicate whether the statement is true or false