EXAM | COMPLETE QUESTIONS AND ANSWERS | 100% RATED
CORRECT | 100% VERFIED | ALREADY GRADED A+
The surface area of Earth is composed of ____ percent ocean and _____ percent
landmass.
29; 71
40; 60
60; 40
71; 29
50; 50 - (answer)71; 29
Which of the following oceans is the largest and deepest on Earth?
the Arctic Ocean
the Indian Ocean
the Atlantic Ocean
the Pacific Ocean
the Antarctic Ocean - (answer)The Pacific Ocean
The three main provinces of the ocean floor as we go from the shore towards the
middle of the ocean are ___________________.
,continental shelf, continental rise, continental margin
mid-ocean ridge, deep-ocean basin, continental margin
continental margin, deep-ocean basin, mid-ocean ridge
continental rise, continental margin, continental slope
deep-ocean basin, continental margin, mid-ocean ridge - (answer)continental
margin, deep-ocean basin, mid-ocean ridge
Which of the following statements regarding active and passive continental
margins is true?
Active continental margins are not associated with active volcanoes, whereas
passive margins are associated with active volcanoes.
Active continental margins are associated with plate boundaries, whereas passive
margins are not associated with plate boundaries.
Active continental margins are not associated with plate boundaries, whereas
passive margins are associated with plate boundaries.
Active continental margins are associated with continental rifts, whereas passive
margins are associated with subduction zones.
Active continental margins are not associated with deep-ocean trenches whereas
passive margins are associated with deep-ocean trenches. - (answer)Active
,continental margins are not associated with plate boundaries, whereas passive
margins are not associated with plate boundaries.
Which of the two following features compose a passive continental margin?
abyssal plains and mid-ocean ridges
accretionary wedge and oceanic crust
shelf and slope
accretionary wedge and trench
trench and subduction zone - (answer)Shelf and slope
What type of plate boundary is associated with deep-ocean trenches?
continental collision
transform plate boundary
submarine canyons
divergent plate boundary
subduction zone - (answer)Subduction Zone
Why are mid-ocean ridges elevated?
Lithosphere created at the ridge is cold.
Lithosphere created at the ridge is hot.
, due to thermal contraction at the ridge
due to compressional forces pushing the lithospheric plates together
Lithosphere created at the ridge is dense. - (answer)Lithosphere created at the ridge
is hot
Ocean sediment composed of former diatoms is an example of _________
sediment
calcareous
terrigenous
hydrogenous
biogenous
evaporites - (answer)Evaporates
Which sea floor resource-based industry is second in economic value only to the
petroleum industry?
gas hydrates
evaporite salts
oil and gas
sand and gravel
manganese nodules - (answer)Sand and gravel