Which one of the following countries is "approaching" water scarcity?
A) Saudi Arabia
B) Egypt
C) Algeria
D) Iran
E) Sudan
Answer: D
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What do many deep water organisms use for feeding and the attraction of mates?
a. Keen eyesight b. Bioluminescence c. Sense of smell d. Electrical impulses
Which one of the following conditions would enhance the development of a lake effect storm?
A) a large temperature gradient between the lake surface temperature the lower atmosphere B) strong southerly flow C) moisture advection associated with an mP air mass D) aA cPw air mass
For the reaction 2 N2(g) + 3 H2(g) ? 2 NH3(g) which of the following can be determined using only the coefficients of the balanced chemical equation?
A) the number of molecules of NH3 obtained if 4.2 mol of N2 react completely to form NH3 B) the number of moles of NH3 obtained if 4.2 mol of N2 react completely to form NH3 C) both a and b D) neither a nor b
The combined effects of evaporation and transpiration are referred to as _______________
Fill in the blank(s) with correct word