CLEAN : Expert lays out challenges facing Malaysia plane searchers

The video discusses the challenges of mapping the ocean floor, particularly at great depths like 4500 meters. It explains how data interpolation is used due to widely spaced data points and the difficulty in identifying materials on the ocean floor using echo returns. The process of deep-sea exploration is slow, taking hours to deploy and retrieve vehicles. Weather conditions, such as tropical cyclones, can complicate searches by dispersing debris. The video compares the current search conditions to past events, suggesting that calmer weather may expedite the process.

What is the primary method used to estimate the depth of the ocean in unmapped areas?

• Interpolating widely spaced data

• Satellite imaging

• Using historical maps

• Direct measurement using submersibles

How can researchers distinguish between sediment and hard materials in the ocean?

• By the speed of sound in water

• By examining the power of the return echo

• By the temperature of the water

• By the color of the water

Which of the following is NOT a factor that makes deep-sea exploration slow?

• The time taken to deploy and retrieve vehicles

• The need for precise mapping

• The depth of the ocean

• The availability of high-speed internet

What is the depth of the Titanic compared to the current exploration site?

• The Titanic is deeper

• The current site is deeper

• Both are at the same depth

• The Titanic is shallower by 1000 meters

What environmental factor is compared to a blender in the ocean?

• A large school of fish

• A strong ocean current

• An underwater volcano

• A tropical cyclone