The property of a mineral to break along planes of weakness is referred to as
A. fracture.
B. hardness.
C. bond strength.
D. cleavage.
Answer: D
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Which statement least characterizes laboratory research?
a. It allows measurement of model ecosystems and populations under controlled conditions. b. It is faster than similar field research. c. It is less costly than similar field research. d. It has been used to develop most of our knowledge about ecosystems. e. It has supplemented field research since the 1960's.
Why can non-native plantings on dunes be counterproductive in protecting beaches?
a. ?Non-native plants rarely survive in beach environments. b. ?Non-native plants can require artificial watering, leading to a rise in the water table and gully formation. c. ?Non-native plants can block the wind from moving the sand to and from the dunes. d. ?Non-native plants can overtake the dunes, covering most of the sand, and require frequent cut-back. e. ?Non-native plantings can change the soil acidity, making the sand more likely to blow away.
Why are moist and dry adiabatic rates of cooling different??
What will be an ideal response?
Which of the following forms at the highest grade of regional metamorphism?
A) hornfels B) schist C) slate D) phyllite