This topic contains a solution. Click here to go to the answer

Author Question: Discuss two of the many serious environmental crises that occurred during the 20th century that ... (Read 50 times)

Bernana

  • Hero Member
  • *****
  • Posts: 530
Discuss two of the many serious environmental crises that occurred during the 20th century that alerted North Americans to the importance of becoming more aware of environmental limitations.
 
  What will be an ideal response?

Question 2

What are some of the environmental and economic challenges of the fisheries industry in the Far North?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

potomatos

  • Sr. Member
  • ****
  • Posts: 338
Answer to Question 1

The student can mention two of the following from the text:
-- 1927 flood of historic magnitude on the Mississippi River that caused hundreds of deaths, and millions of dollars in damage. It also called attention to the difficulties in managing North America's water resources through the construction of dams, levees, and other flood control technology.
-- 1930s Dust Bowl, which was caused by warm and windy weather, and inappropriate agricultural practices, that focused nation attention on soil erosion and conservation.
-- The impact of heavy industry on air quality that received national attention in 1948 when an inversion layer of highly polluted air settled over the steel community of Donora, Pennsylvania, near Pittsburgh that resulted in 20 fatalities and caused thousands of residents to develop respiratory illnesses.

Answer to Question 2

Students should know that overfishing reduces the fish populations and the biological diversity of those populations, especially of species with the greatest economic importance.
Fishing rights remain a major issue both in Alaska and in the Far North Atlantic. Many communities have an acute interest in maintaining the fisheries resource base because their livelihoods depend on it. However, today's fish populations have been drastically reduced on both the Pacific and the Atlantic coasts of the Far North due to intense overfishing by domestic and foreign fishing fleets, which have decimated fish populations.




Bernana

  • Member
  • Posts: 530
Reply 2 on: Aug 7, 2018
:D TYSM


ashely1112

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Gracias!

 

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

For a complete list of videos, visit our video library