Which of the following statements about Earth's tides is correct?
a. One wavelength equals half of Earth's circumference.
b. There are typically six hours between successive high tides.
c. Most places on Earth have one high and one low tide per day.
d. They are caused by convection currents in the mantle.
e. They are caused by the gravitational attraction between Earth and Mars.
Question 2
Energy in a wind wave increases with:
a. slower wind speeds.
b. increasing wave height.
c. decreasing fetch.
d. storms of shorter duration.
e. storms of smaller area.