What is meant by a mineral's tenacity? List three terms that describe tenacity
What will be an ideal response?
A mineral's "tenacity" is its "toughness." This is its resistance to breaking. Tenacity can be described as "brittle" if a mineral shatters, "malleable" if a mineral can be hammered into different shapes, or "elastic" if it is flexible.
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Typical weather in Los Angeles, California is sunny and warm during the day. A major concern for people who live there is asthma and bronchitis from photochemical smog.
Answer the following statement true (T) or false (F)
What is an advantage of using coal as an energy resource?
A. Coal mining involves minimal land disturbance. B. Coal mining and burning is inexpensive when environmental costs are not included. C. Coal burning produces less CO2than other fossil fuels. D. Coal is clean-burning. E. Coal mining causes minimal damage to habitats.
Erosion is a degrading process whereas deposition is an aggradating process
Indicate whether the statement is true or false
A bright, yellow-orange sunset will occur when the atmosphere ____
A) is loaded with dust particles B) contains many fine particles larger than air C) contains sulfur ash D) is fairly clean