In over the past 50 years fishing industry in north american needed to improve their equipment fishing and boats to enhance their production.
the greatest impact on the fishing industry in north america is: a. improvement and modernization of boats and fishing equipment.
hope this help
Frogs<span> are at the bottom of the food chain; they need a lot of offspring in order to offset how many are being eaten everyday. Basically, </span>gametes<span> are sex cells. ... So to increase the chances of fertilization </span>frog produce large<span> no. Of </span>gametes<span> and basically sprays them over eggs released by female.</span>
Generally, temperature increases. as altitude increases ! <span>However, the temperature increases with altitude in some layers. This is called an inversion. Inversions can appear at any altitude in the troposphere.
(NOTE: its Troposphere not Stratosphere)</span>
B.<span>They can deplete the food sources of native organisms.</span>