Topography and Types of Sediments

The video explores the largely unexplored ocean floor, highlighting the challenges of high pressure and the use of sonar technology. It describes various ocean floor landforms, such as the abyssal plain and mid-ocean ridge, and explains sediment types, including terrigenous and biogenic. The video also covers sediment transport and the process of lithification, as well as the role of upwelling and the Coriolis force in ocean currents.

What is the primary challenge in exploring the ocean floor?

• Limited funding

• Lack of technology

• High water temperatures

• High pressures from water weight

Which method is used by oceanographers to map the ocean floor?

• Underwater cameras

• Sonar technology

• Satellite imaging

• Diving expeditions

What is the abyssal plain?

• A deep ocean trench

• A coral reef

• A mountainous region

• A flat and featureless area

Where are the thickest sediment deposits found in today's oceans?

• Near the poles

• Near mid-ocean ridges

• In the Pacific Ocean

• In the Bay of Bengal and Gulf of Mexico

What is terrigenous sediment primarily composed of?

• Organic material

• Minerals and small rocks

• Coral fragments

• Volcanic ash

What causes upwelling in the ocean?

• Volcanic activity

• Strong winds and Earth's rotation

• Tidal forces

• Earthquakes

Where are siliceous oozes most likely to be found?

• In cold deep waters at the poles

• In warm shallow seas

• In freshwater lakes

• Near coral reefs