The tin compound used to strengthen teeth has the formula SnF2. Which of the following is the common name for this compound?
A) stannic fluoride
B) stannous fluoride
C) tin fluoride
D) tin(II) fluorine
B
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Which reproductive pattern is most common, if one considers patterns seen in all animals?
a. Producing large numbers of offspring at short intervals, and providing no parental care or protection. b. Producing few offspring later in life, and providing extensive parental care and protection. c. A reproductive pattern that is somewhere between the two extremes described in a and b. d. Most living organisms actually switch between the two patterns described in a and b. e. No such patterns have ever been observed in nature.
Weather and climate are synonymous terms
a. True b. False
Mesoscale convective complexes are self-sustaining because
A) wind shear is typically absent. B) downdrafts from individual cells become warmer as the precipitation evaporates. C) downdrafts from individual cells rise over the outflow boundary. D) downdrafts from individual cells combine with surface winds to create updrafts and wind shear.
Explain how the Japan Model is "top-down" in many ways
What will be an ideal response?