What did Polynesians use to determine if an island was near, but ...

[ericka1]

What did Polynesians use to determine if an island was near, but could not be seen yet?
  a. The change in the rhythmic set of waves against the hull
  b. The Flight tracks of birds at dusk
  c. The Smell of the water
  d. All of these choices were use

Question 2

What was not an invention rendered by the Chinese to facilitate their ocean voyages?
  a. Central rudder system
  b. Watertight compartments
  c. Chronometer
  d. Compass

[vkodali]

Answer to Question 1

ANS: D
The Polynesians used many indicators to find islands that were out of sight over the horizon. They
used the pattern of waves, bird flight patterns, and the smell of water. They also used stars, water's
temperature, salinity, and color to find these islands. Information can be found in the section
Understanding the Ocean Began with Voyaging for Trade and Exploration.

Answer to Question 2

ANS: C
The Chinese had many technological innovations which made their voyaging possible. They invented
central rudders, watertight compartments, compasses, and a sophisticated sail system. The
chronometer, however, was invented by John Harrison. Information can be found in the section
Understanding the Ocean Began with Voyaging for Trade and Exploration

[ericka1]

Great answer, keep it coming

[ktidd]

Wow, this really help