What is the name of the instrument used to measure specific gravity?
A) densitometer
B) gravameter
C) hydrometer
D) spectrometer
C
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The bending of waves toward shore as they approach from an oblique angle is called wave ____________________
Fill in the blank(s) with correct word
Devastating earthquakes struck Haiti in January 2010, forcing the native people to live under the most primitive of conditions
Which one of the following forms of immediate aid would most likely prevent the outbreak of cholera and dysentery in refugees who were not seriously harmed by the earthquakes? A) A large supply of clothing, dish soap, and toiletries B) Large supplies of rice and pots to cook the rice C) Water purification systems and supplies of bottled water D) Tents and blankets to help the people get protect themselves from the sun and keep warm at night
About how many people die each year because of indoor and outdoor air pollution worldwide?
A. 10,000 B. 70,000 C. 500,000 D. 1 million E. 7 million
Which below best describes the solute effect?
a. keeps water droplets from freezing at temperatures below 32°F b. removal of pollutants from the atmosphere by cloud droplets c. water droplets dissolve hygroscopic nuclei and condensation can occur at relative humidities less than 100 percent d. evaporation of cloud droplets and growing of ice crystals in a cold cloud e. condensation occurs at relative humidities of 100 percent