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

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

Fungi

Animalia

Protista

Monera

None

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

Plankton absorbing atmospheric carbon dioxide through photosynthesis.

Decomposition of marine animals on the seafloor releasing stored carbon.

Carbon dioxide dissolving directly into seawater to form carbonic acid.

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

None

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

Ibn Battuta

Vasco da Gama

Christopher Columbus

Alfred Wegener

None

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

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 specifically targets only large, endangered predator fish.

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

It causes chemical pollution from the large fishing vessels.

None

What distinguishes a 'seamount' from other features of the ocean floor?

It is a long, narrow depression that marks the deepest parts of the ocean.

It is a continuous underwater mountain range where new crust is formed.

It is an underwater mountain formed by volcanic activity.

It is a flat, deep area of the ocean floor covered in sediment.

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 Earth’s own rotation on its axis.

The Sun, because of its immense mass.

Both the Sun and Moon equally.

None

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

Magma rising from the mantle as two plates move apart.

The horizontal sliding of two plates against each other.

Thick layers of sediment accumulating over millions of years.

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

None

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

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

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

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.

None

10.

What is the primary mechanism behind the phenomenon of 'upwelling'

Gravitational pull from the moon causing deep water to rise.

Volcanic activity heating the seabed and causing water to circulate upwards.

Surface winds pushing warmer surface water away from a coastline.

The Coriolis effect forcing deep ocean currents towards the surface.

None

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