Question

1. which pair of ocean-floor features are directly connected by the process of sediment movement described in the text?

a. volcanic islands and seamounts
b. continental shelf and mid-ocean ridge
c. continental slope and continental rise
d. trench and abyssal plain

1. the author ends the passage by saying understanding ocean features \highlights the importance of protecting our oceans for future generations.\ which detail from the passage most directly supports this idea?

a. abyssal plains are lifeless and unimportant.
b. many features provide habitats and support diverse marine life.
c. mid-ocean ridges are the only place where life exists without sunlight.
d. volcanic islands are always dangerous and uninhabitable.

Explanation:

Question 9

To solve this, we analyze each option based on sediment movement:

• Option A: Volcanic islands and seamounts are formed by volcanic activity, not directly by sediment movement.
• Option B: Continental shelf is near the continent, mid - ocean ridge is a spreading center; sediment movement doesn't directly connect them.
• Option C: Sediment eroded from the continental slope moves down to form the continental rise. So they are connected by sediment movement.
• Option D: Trench is a subduction zone, abyssal plain is a flat area, but sediment movement doesn't directly connect them as in option C.

We need to find a detail that supports protecting oceans for future generations:

• Option A: Saying abyssal plains are lifeless and unimportant goes against the need to protect oceans.
• Option B: If many ocean features provide habitats and support diverse marine life, then protecting oceans (which contain these features) is important for future generations as it preserves these habitats and marine life.
• Option C: Saying mid - ocean ridges are the only place for life without sunlight is too narrow and not as strong a support as option B.
• Option D: Saying volcanic islands are always dangerous and uninhabitable is negative and doesn't support protecting oceans.

Answer:

C. Continental slope and continental rise

Question 10