Kuiz Sains Tambahan Tingkatan 5 Bab 8 Set 1

SELAMAT DATANG Kuiz Sains Tambahan Tingkatan 5 Bab 8 Set 1

Oseanografik (English)

KUIZ INI MENGANDUNGI 10 SOALAN

What is a defining characteristic of diadromous fish like salmon?

They live and feed near the bottom of the sea.

They are small fish that live near the surface and are prey for larger predators.

They migrate between saltwater and freshwater environments.

They lack a backbone and have a soft body.

None

The temperature of the ocean varies significantly with depth. What is the term for the transitional layer where temperature changes rapidly?

Subduction zone

Abyssal zone

Photosynthesis zone

Thermocline

None

A mid-ocean ridge is formed by which specific geological process?

Thick layers of sediment accumulating over millions of years.

Magma rising from the mantle as two plates move apart.

The horizontal sliding of two plates against each other.

The collision of two oceanic plates, with one bending downward.

None

Which of the five main oceans is characterized as being the smallest and is largely covered by sea ice that varies with the seasons?

Southern Ocean

Pacific Ocean

Atlantic Ocean

Arctic Ocean

None

Overfishing is a significant issue threatening marine ecosystems. According to the text, why is the practice of bottom trawling particularly destructive?

It introduces invasive species into new marine environments.

It causes chemical pollution from the large fishing vessels.

It specifically targets only large, endangered predator fish.

It catches everything in its path and destroys the seabed habitat.

None

Which of the following factors would lead to a decrease in the salinity of ocean water?

Melting of glaciers and icebergs

Low precipitation over the ocean

Formation of sea ice

High rates of evaporation

None

Organisms like phytoplankton, which are primary producers in the ocean, belong to which kingdom?

Fungi

Monera

Animalia

Protista

None

The ocean acts as a 'carbon sink' through a biological process. What is the key first step in this process?

Deep ocean currents physically pulling carbon dioxide down from the surface.

Decomposition of marine animals on the seafloor releasing stored carbon.

Carbon dioxide dissolving directly into seawater to form carbonic acid.

Plankton absorbing atmospheric carbon dioxide through photosynthesis.

None

The daily rise and fall of sea levels, known as tides, are primarily caused by the gravitational pull of which celestial body?

The Moon, because of its close proximity to Earth.

The Sun, because of its immense mass.

Both the Sun and Moon equally.

The Earth’s own rotation on its axis.

None

10.

Which type of tectonic plate boundary is primarily responsible for the formation of deep ocean trenches like the Mariana Trench?

Convergent boundary

Divergent boundary

Abyssal boundary

Transform boundary

None

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