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

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

Satellite Altimetry

Subduction Zone Imaging

Light Detection and Ranging (LiDAR)

Sound Navigation and Ranging (SONAR)

None

What is a defining characteristic of diadromous fish like salmon?

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.

They migrate between saltwater and freshwater environments.

They lack a backbone and have a soft body.

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.

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

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

None

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

The Sun, because of its immense mass.

Both the Sun and Moon equally.

The Earth’s own rotation on its axis.

The Moon, because of its close proximity to Earth.

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.

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.

None

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 specifically targets only large, endangered predator fish.

It causes chemical pollution from the large fishing vessels.

None

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

Formation of sea ice

Low precipitation over the ocean

Melting of glaciers and icebergs

High rates of evaporation

None

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

Convergent boundary

Abyssal boundary

Divergent boundary

Transform boundary

None

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

Animalia

Protista

Monera

Fungi

None

10.

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

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

Gravitational pull from the moon causing deep water to rise.

The Coriolis effect forcing deep ocean currents towards the surface.

Surface winds pushing warmer surface water away from a coastline.

None

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