What occurs as a tsunami's circumference expands? a. The wave ...

[Mimi]

What occurs as a tsunami's circumference expands?
  a. The wave height increases
  b. The energy dissipates
  c. The period increases
  d. The period decreases.

Question 2

How deep would a submarine need to dive to feel no motion from surface waves with a wavelength of
  200 meters ?
  a. less than 50 meters
  b. less than 100 meters
  c. below 50 meters but above 100 meters
  d. below 100 meters

[chevyboi1976]

Answer to Question 1

ANS: B
This is partly why India was not as heavily impacted by the 2004 tsunami off Indonesia. Information
can be found in the section Water Displacement Causes Tsunamis and Seismic Sea Waves.

Answer to Question 2

ANS: D
A sea is a group of wind waves with many wavelengths, periods and heights that are being generated
by the continual blowing of wind. Information can be found in the section Ocean Waves move Energy
across the Sea Surface

[Mimi]

Thanks for the timely response, appreciate it

[phuda]

Gracias!