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1.gold and silver are commonly used in jewelry because of their ability to be hammered,pressed,or rolled into thin sheets. what characteristic best describe gold and silver?

A.it is hard
B.it is malleable
C.it is elastic
D.it is ductile

2.which of the following statements best describes the pysical property of a material?

A. it can be seen by our eyes
B. it can be felt by our senses
C. it can be observed and measured without changing the identify of a substance.
D. it can be observed and measured by changing the identify of a substance