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 migrate between saltwater and freshwater environments.

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

They lack a backbone and have a soft body.

None

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

Fungi

Monera

Protista

Animalia

None

Which ocean floor mapping technique uses pulses of light, often from an aircraft, to measure the depth of shallower coastal waters?

Sound Navigation and Ranging (SONAR)

Light Detection and Ranging (LiDAR)

Satellite Altimetry

Subduction Zone Imaging

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 an underwater mountain formed by volcanic activity.

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

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

None

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

Divergent boundary

Abyssal boundary

Convergent boundary

Transform boundary

None

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

Carbon dioxide dissolving directly into seawater to form carbonic acid.

Decomposition of marine animals on the seafloor releasing stored carbon.

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

Plankton absorbing atmospheric carbon dioxide through photosynthesis.

None

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

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.

Magma rising from the mantle as two plates move apart.

None

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

Melting of glaciers and icebergs

High rates of evaporation

Formation of sea ice

Low precipitation over the ocean

None

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

Surface winds pushing warmer surface water away from a coastline.

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

The Coriolis effect forcing deep ocean currents towards the surface.

Gravitational pull from the moon causing deep water to rise.

None

10.

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

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

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.

None

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