Which number indicates neutral on a pH scale?
A) 1 B) 3 C) 9 D) 7 E) 5
D
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Which of the following is the range of wavelengths corresponding to the maximum amount of radiation emitted by the Earth?
A. 0.5 micrometre 10 micrometers B. 1 micrometre 1 micrometer C. 10 micrometres 30 micrometers D. 30 micrometres 0.5 micrometers
A graphic device that displays the population by age and sex groups is called a _________________.
Fill in the blank(s) with the appropriate word(s).
A horst is...
a.) a downdropped block bounded by two normal faults b.) a downdropped block bounded by two reverse faults c.) an uplifted block bounded by two normal faults d.) an uplifted block bounded by two reverse faults
If a small piece of iron that has a temperature of 25°C is placed in a container of 1,000 g of water that has a temperature of 99°C, which of the following is likely to occur?
a. The iron will melt if the piece is small enough b. The temperature of the water will increase to 100 C and start to boil c. Some heat will be transferred from the water to the iron d. The temperature of the iron will decrease