The element silicon has a melting point of 1,410°C and a boiling point of 2,355°C. It is a weak conductor of electricity, its density is 2.3 grams per cubic centimeter and it easily forms silicon dioxide when exposed to air

Which of the following is a chemical property of silicon? A) its ability to conduct electricity
B) its density
C) its melting point
D) its ability to react with oxygen
E) C and D


D

Environmental & Atmospheric Sciences

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Climate change will cause certain species to become extinct.

Answer the following statement true (T) or false (F)

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Which of the following cloud types are commonly found downwind of a mountain?

A. mammatus clouds B. anvil clouds C. lenticular clouds D. contrails

Environmental & Atmospheric Sciences

The term deposition refers to

A) water vapor condensing into liquid. B) ice changing to water vapor. C) water freezing to ice. D) water vapor freezing to ice. E) ice melting to water.

Environmental & Atmospheric Sciences

Which of the following religions is NOT found among the peoples of Central Asia?

A) Hinduism B) Christianity C) Islam D) Buddhism E) Judaism

Environmental & Atmospheric Sciences