Surface currents are caused by friction between which two elements?
a. the ocean surface and wind
b. warm air fronts and cold air fronts
c. the ocean surface and deep ocean waters
d. northern currents and southern currents

Which statement describes why the us forest service is important a-it protects ecosystems, supervises public access of lands, and manages wilderness areas. b-it supervises public access of lands, manages wilderness areas, and enforces federal wildlife laws. c- it manages wilderness areas, enforces federal wildlife laws, and foreign governments with international conservation efforts. d- it enforces federal wildlife laws, foreign governments with international conservation efforts, and protects ecosystems.

[ou.01]which of these is the most likely use of an electromagnetic wave which has wavelength shorter than microwaves but longer than visible light? o heat food safely o neat food safely o take images of bones and teeth o transmit radio and cellular phone signals o take images of bones and teeth o transmit radio and cellular phone signals o detect the location of objects which emit heat

If the basis of an isosceles trapezoid have lengths of 11 and 26, what is the length of the median?