Short answer (50-80 words at most)

1. what are the typical speeds attained by bluefin tuna during their migrations across the pacific ocean? how many days does it take them to travel from the californian coast to japan?

2.like other nations the u. s. has jurisdiction over its territorial waters. how far from the coastline do these waters extend, and does the u. s. have exclusive economic rights to exploit and use marine resources within them?

3.what types of evidence show that marine biota are adversely affected by oil spillages? what characteristics of the spillage may influence the magnitude of its effects?

4. are all regions of the earth similarly affected by the changes in climate resulting from increasing levels of atmospheric co2? which areas of the earth show the greatest temperature change over the past 40+ years?