Explain how circulation patterns in the atmosphere generate the bands of low-latitude deserts around the equator
What will be an ideal response?
Answer: Heated air in the equatorial low rises and spreads out. As it spreads out and cools, the moisture is precipitated out of the air mass. When the air reaches 20°-30° latitude, it cools and sinks. As the air sinks, it gets compressed and warms, resulting in the warm temperatures at those locations.
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If an ionic bond is stronger than a dipole-dipole interaction, how can water dissolve an ionic compound?
A. The ionic bond is weakened by the ion-dipole interactions and ionic repulsion ejects the ions from the crystal. B. The ion-dipole interactions of a bunch of water molecules gang up on the strong ionic bond and pull it into the solution. C. The ion-dipole interaction causes the ions to heat up and vibrate free of the crystal. D. The ions never overcome their interatomic attraction and therefore are not soluble. E. none of the above
Which of the following give(s) the correct order of ionization energies?
A) Li > Na > K > Rb B) Na < Mg < P < Cl C) both a and b D) neither a nor b
The major difference between a wet tropical region and a tropical wet and dry region is ________
A) precipitation B) wind direction C) pressure D) elevation E) temperature
What would a night time satellite image of Egypt reveal?
A. randomly scattered lights; faint, no real pattern B. a string of lights east and west along the coast C. a fairly uniform distribution of light throughout the country D. a snake of light along the Nile River, surrounded by deep darkness