Question

1. what makes the southern ocean unique, according to the passage?

a. it is the only ocean not bordered by any continent.
b. it has the most islands.
c. it is the warmest ocean.
d. it is the deepest ocean.

1. which ocean is described as the smallest and shallowest?

a. pacific ocean
b. indian ocean
c. arctic ocean
d. atlantic ocean

1. the text mentions that the arctic ocean is covered by sea ice for much of the year and is home to animals such as:

a. penguins and whales
b. sharks and octopuses
c. dolphins and turtles
d. polar bears and seals

Explanation:

Question 5

To determine the unique feature of the Southern Ocean, we analyze each option:

• Option A: The Southern Ocean is the only ocean not bordered by a continent (it surrounds Antarctica, but Antarctica is a continent, and the ocean's boundary is defined by the Antarctic Circumpolar Current, making it distinct in not being bordered by a continent in the traditional sense of other oceans like Pacific (bordered by Asia, Americas, etc.), Atlantic (bordered by Americas, Europe, Africa), Indian (bordered by Asia, Africa, Australia)).
• Option B: Oceans like the Pacific have more islands, so B is incorrect.
• Option C: The Southern Ocean is cold, not the warmest, so C is wrong.
• Option D: The Pacific is the deepest, so D is incorrect.

Among the oceans:

• The Arctic Ocean is known to be the smallest in area and the shallowest in average depth compared to the Pacific (largest and deep), Atlantic (second - largest), and Indian (third - largest).

• Option A: Penguins are associated with the Antarctic, not Arctic, so A is wrong.
• Option B: Sharks and octopuses are more common in warmer oceans, not the ice - covered Arctic, so B is incorrect.
• Option C: Dolphins and turtles are also more common in warmer, non - Arctic waters, so C is wrong.
• Option D: Polar bears and seals are typical animals of the Arctic Ocean, which is covered by sea ice for much of the year.

Answer:

A. It is the only ocean not bordered by any continent.

Question 6