Which of the following statements about asbestos is true?
A. Asbestos is a mineral belonging to the carbonate group of minerals.
B. The type of asbestos most commonly used in construction materials (chrysotile or "white asbestos") is also the most hazardous to health.
C. Asbestos is a generic term for any mineral crystal that is a fiber (i.e. thin and flexible).
D. Asbestos can occur in any one of the three rocks types, igneous, sedimentary or metamorphic.
Answer: C
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Clouds, dew and frost all form because air has become saturated. This condition of saturation is USUALLY caused by:
A) lack of convective mixing. B) a temperature increase. C) the air being cooled. D) an abundance of condensation nuclei. E) adding water vapor.
The Wilderness Act passed in 1964 allows the government to
a. take legal action against environmental degradation in wildlife preserves b. protect native species c. protect undeveloped tracts of public land d. protect national parks and reserves e. rotate usage of wildlife areas
Dew PointFor the following questions refer to the temperature and dew point data in the following cities: CityAir Temperature (ºC)Dew Point (ºC)City A3524City B-12-12City C-1-6City D106In a blinding snowstorm in Whitehorse, the air temperature and dew point temperature are both -1ºC. Meanwhile, under clear skies in Toronto, the air temperature is 29ºC and the dew point temperature is 3ºC. Which of the following can be concluded from this information?
A. Whitehorse and Toronto are both located next to the ocean. B. The same amount of water vapour is found in the air in Toronto and Whitehorse. C. There is more water vapour in the air in Toronto. D. There is more water vapour in the Whitehorse snowstorm.
The movement of water in a wave travels
A. with the wave. B. in a circular path at a depth of one-half the wavelength. C. in a circular path at and just below the water surface. D. in both a longitudinal and circular path.