Hi all!

Pls help me in these 2 simple questions.

Thanks in advance!

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

Frequency of electromagnetic waves that a radio station is assigned is called

Scientist have use computer models to create a series of maps that show how susceptible coastal cities in island countries are to the sea rising at different levels.the map shows that a 1 meter rise would swap cities all along the us eastern seaboard. a 6-meter sea level rise with sub merge a large part of florida. thermal expansion has already raise the oceans 10 to 20 centimeters the most likely cause,directly and indirectly, for such a rise in sea level is