« previous next »

Author Question: A 3-hectare lake in the American Midwest suddenly has succumbed to an algal bloo (Read 1025 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
on: Oct 27, 2013
A 3-hectare lake in the American Midwest suddenly has succumbed to an algal bloom. What is the likely cause of eutrophication in freshwater ecosystems, such as this one?
A) increased solar radiation
B) introduction of non-native tertiary consumer fish
C) nutrient runoff
D) accidental introduction of a prolific culture of algae
E) iron dust blowing into the lake


plus1

  • Hero Member
  • *****
  • Posts: 676
Reply #1 on: Nov 3, 2013
I recall doing this last year, it's C, bye bye!


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

penza

  • Hero Member
  • *****
  • Posts: 1,022
Reply #2 on: Aug 21, 2014
Incredible, thanks for your help!


« previous next »
 

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Lake Baikal Lake Baikal
American women operating machine lathes in a munitions factory. American women operating machine lathes in a munitions factory.
John Gast, American Progress. John Gast, American Progress.
American people aren't the only ones getting bigger—American pets are also putting on pounds American people aren't the only ones getting bigger—American pets are also putting on pounds
American Government: Roots and Reform, AP* Edition, 12th Edition American Government: Roots and Reform, AP* Edition, 12th Edition
North American temperate deciduous forest. Forest soil profile at right. North American temperate deciduous forest. Forest soil profile at right.
Video: Major Elements in Biological Molecules: Carbohydrates

For a complete list of videos, visit our video library