Mean sea level Select one: a. is a consistent value yet to be determined due to the variables involved in producing the tides. b
. is at the same level along the entire North American coast. c. is based on average tidal levels recorded hourly at a given site over a period of many years. d. has very little variability across all ocean basins and, therefore, is treated as an absolute value. e. is constant enabling scientist to determine a single value thereof, though there are local minor variations.
Answer: <em>Mean sea level is an average level of the surface of one or more of Earth's bodies of water from which heights such as elevation may be measured.</em>
