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The North Atlantic right whale was classified as an endangered species in 2015. A major cause of death for these whales is collisions with shipping vessels. Several measures have been enacted to prevent such collisions in regions with a high abundance of right whales. In 2002 and 2006, shipping vessel lanes were rerouted around some of these regions. In 2008, speed restrictions were placed on the shipping vessels that were permitted to travel through these regions.

The graph below shows the estimated abundance of North Atlantic right whales from 1990 to 2015. The years in which these measures were enacted are marked on the graph.


What conclusion is best supported by the data in the graph?

A. Modifying shipping lanes is the most effective method of encouraging population growth in right whales.

B. Limiting shipping vessel speeds is the most effective method of preventing population decline in right whales.

C. Changes to vessel speeds and lanes have been effective in preventing population
declines in the right whale population, and no further actions are needed.

D. While changes to vessel lanes and speeds may have been beneficial to right
whales, additional actions are needed to prevent population declines.

The North Atlantic right whale was classified as an endangered species in 2015 A major cause of death for these whales is collisions with shipping vessels Sever class=

Respuesta :

GeoPanther

According to the graph, the correct answer is - Changes to vessel speeds and lanes have been effective in preventing population declines in the right whale population, and no further actions are needed.

Both methods seem to be pretty effective, and since the implementing of the changes of the lanes, the number of the right whales has been steadily growing, and after the vessel speeds limitations were added, the population of the right whales started to rise even quicker. Obviously, when both of the measures were in force, the effects were the best for the right whale populations.

Answer:

While changes to vessel lanes and speeds may have been beneficial to right whales, additional actions are needed to prevent population declines.

Explanation:

As you can see from the graph, both those things were beneficial, but around 2009 you can see that the population began going down again. This means that the effects were obviously good, but that more actions should be taken in order to ensure that the right whales thrive even more since for the first time in 20 years they began going back down.