It is theorized that early Polynesian sailors were able to navigate vast regions of the Pacific by at least what three means? a.
motion of specific stars b. weather and seasons of travel
c. direction, size and speed of ocean waves
d. colors of seas and sky
e. cloud formations in the sky
The three means by which the early Polynesian sailors were able to navigate vast regions of the Pacific were by watching the motion of specific stars, weather and seasons of travel and direction, size and speed of ocean waves. The correct options among all the options that are given in the question are option "a", "b", "c".
Polynesian were the indigenous people who lived in the islands of the Pacific Ocean. According to historians, Polynesian were great sailors, boat builder, explorer, and navigator during their period. They sailed for long distances through their sophisticated navigation system. These people sailed after observing the ocean swells, which indicated the winds and tides. Observations of the stars and the flight patterns of birds were some of the other methods Polynesian used for voyages.
It is because a hurricane is the most violent storms on earth. People call these storms by other names such as typhoons and cyclones. Owing to the aircraft which flies at 6000 feet above the ocean level,it could be affected by the tidal wind accompanied by the occurrence of the hurricane.
Low dissolved oxygen concentrations that occur in many bodies of water when nutrients stimulate the growth of algae that subsequently die and are decomposed by oxygen-using bacteria.