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

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 catches everything in its path and destroys the seabed habitat.

It specifically targets only large, endangered predator fish.

None

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

Abyssal zone

Photosynthesis zone

Subduction zone

Thermocline

None

Which early explorer is credited with finding a sea route from Europe to India by sailing around Africa?

Christopher Columbus

Ibn Battuta

Alfred Wegener

Vasco da Gama

None

What is a defining characteristic of diadromous fish like salmon?

They lack a backbone and have a soft body.

They migrate between saltwater and freshwater environments.

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

They live and feed near the bottom of the sea.

None

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

The horizontal sliding of two plates against each other.

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

Thick layers of sediment accumulating over millions of years.

Magma rising from the mantle as two plates move apart.

None

Coral reefs require clear water to thrive. What is the primary reason for this requirement?

Sunlight needs to penetrate the water for the symbiotic algae (zooxanthellae) to perform photosynthesis.

Predatory fish are less able to hunt in clear water, protecting the reef’s inhabitants.

Sediment in murky water can physically smother and kill the coral polyps.

Clear water has a higher dissolved oxygen content necessary for coral respiration.

None

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

Low precipitation over the ocean

Melting of glaciers and icebergs

High rates of evaporation

Formation of sea ice

None

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

Fungi

Monera

Protista

Animalia

None

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

The Earth’s own rotation on its axis.

Both the Sun and Moon equally.

The Moon, because of its close proximity to Earth.

The Sun, because of its immense mass.

None

10.

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

Atlantic Ocean

Arctic Ocean

Pacific Ocean

Southern Ocean

None

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