Which of the following best defines freezing point?
A) The highest temperature at which a gas changes to a liquid
B) The temperature at which a liquid changes to a gas
C) The temperature at which a liquid changes to a solid
D) The temperature at which a solid changes to a gas
C
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According to this figure depicting Niger's population, when did the country enter the second stage of the demographic transition?
A) 2000-2010 B) 1990-2000 C) 1960-1970 D) 1950-1960 E) 1975-1980
Mountains stand high compared to nearby plains. Which region, mountains or plains, do you predict will have the thicker crustal root? Please explain
What will be an ideal response?
Standard temperature and pressure are which of the following?
A) 0 °C and 1 atm B) 32 °F and 1 atm C) 273 K and 1 atm D) all of these
Normal kidney function involves which of the following?
A) filtration in which large molecules are lost but small molecules are retained B) reabsorption of some small molecules from the urine C) both a and b D) neither a nor b