1) Lithospheric plates_____________. a float on the asthenosphere b All of the a

Question

1)

Lithospheric plates_____________.

a

float on the asthenosphere

b

All of the above are correct.

c

are generated at spreading centers

d

are incorporated into the mantle at subduction zones

e

are moved by convection currents in the mantle

__________________________________________________________________________________

2)

The oldest sediments on the ocean floor are found __________.

a

where sediment deposits are thinnest

b

at spreading centers

c

overlying the youngest oceanic crust

d

near the edge of ocean basins and away from spreading centers

e

near divergent plate boundarie

a

float on the asthenosphere

b

All of the above are correct.

c

are generated at spreading centers

d

are incorporated into the mantle at subduction zones

e

are moved by convection currents in the mantle

__________________________________________________________________________________

2)

The oldest sediments on the ocean floor are found __________.

a

where sediment deposits are thinnest

b

at spreading centers

c

overlying the youngest oceanic crust

d

near the edge of ocean basins and away from spreading centers

e

near divergent plate boundarie

Explanation / Answer

1) Lithospheric plates_____________b All of the above are correct.

2) The oldest sediments on the ocean floor are found __________d near the edge of ocean basins and away from spreading centers

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