Ch 6 2 Of 3 Question Preview (ID: 2751)

a) chloride

b) sodium

c)

d)

a) the oceans are becoming saltier

b) that the oceans are becoming no more or less ssalty

c)

d)

a) the higher the density

b) the lower the density

c)

d)

a) amount of carbon diooxides varies with depth

b) water pressure prevents ions from forming

c)

d)

a) the process of inorganic salts entering and leavinng seawater

b) the process of elements and compounds moving continuously to and from organisms and the Earth

c)

d)

a) carbon

b) phosphorous

c)

d)

a) it reacts with hydrogen to form energy

b) it provides a versatile foundation for diverse chemicals

c)

d)

a) as an inhaled energy source

b) for the formation of organic compounds such as proteins, chlorphyll and nucleic acids

c)

d)

a) it combines with nitrogen to form shells

b) it is an important component of DNA and nucleic acids

c)

d)

a) because it aids in digestion

b) becaused it used for shells and skeletons in some organisms

c)

d)