NOSB 2018 (Regional Competition 1/Round 2)

Front

What are the two states in the U.S. that work with indigenous communities to ensure catch limits for subsistence whaling?

Back

Alaska and Washington

Front

What fluid did the ancient Romans use to enhance the strength of their concrete?

Back

Salt water

Front

What provided early evidence for seafloor spreading and the Vine-Matthews-Morley hypothesis?

Back

Seafloor magnetic anomalies

Front

Which region of the environment is sampled by a dredge?

Back

Benthos

Front

What is the process called that involves the physical, chemical, or biological breakdown of rocks?

Back

Weathering

Front

What is the definition of 'benthos'?

Back

The ecological region at the lowest level of a body of water, including the sediment surface and sub-surface.

Front

What is the significance of seafloor magnetic anomalies in geology?

Back

They provide evidence for the theory of plate tectonics and seafloor spreading.

Front

What role does salt water play in ancient Roman construction?

Back

It was used to increase the durability and strength of concrete.

Front

Define 'subsistence whaling'.

Back

Whaling conducted by indigenous communities primarily for their own consumption and cultural practices.

Front

What is the importance of catch limits in fisheries management?

Back

Catch limits help ensure sustainable fish populations and protect marine ecosystems.