« previous next »

Author Question: Why is upwelling such an important factor in creating areas of high biologic productivity? a) ... (Read 70 times)

Frost2351

  • Hero Member
  • *****
  • Posts: 557
on: Aug 22, 2018
Why is upwelling such an important factor in creating areas of high biologic productivity?
 
  a) Upwelling brings nutrient-rich deep water to the surface where productivity is limited by the availability of nutrients.
  b) Upwelling delivers oxygen-rich water to the surface where productivity is limited by oxygen content in the water.
  c) Upwelling brings cool deep waters to the surface where productivity is limited by high temperature.
  d) Upwelling brings new phytoplankton to the surface where they can multiply rapidly.
  e) Upwelling causes rain, which results in less salty surface waters that are better suited for primary productivity.

Question 2

Why are lakes like the Dead Sea and Great Salt Lake so buoyant?
 
  a) The water is brackish; it has a high amount of dissolved solids, making it extremely dense and buoyant.
  b) The water is hypersaline; it has a high amount of dissolved solids, making it extremely dense and buoyant.
  c) Salt water meets freshwater at these lakes, making them extremely buoyant.
  d) The water has very little dissolved chloride, so the water is very buoyant.
  e) None of the above


Loise Hard

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Aug 22, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

ABO Blood Reactions Are Important in Transfusions ABO Blood Reactions Are Important in Transfusions
The common squirrel monkey (Saimiri sciureus) is a small New World primate from the Cebidae (squirre The common squirrel monkey (Saimiri sciureus) is a small New World primate from the Cebidae (squirre
Relationship between a diagnostic label and related factor Relationship between a diagnostic label and related factor
Areas of the United States, Mexico, and Cuba will be affected by a rise of just 100 cm Areas of the United States, Mexico, and Cuba will be affected by a rise of just 100 cm
Coastal Upwelling Coastal Upwelling
The graph of y = sqrt(x) is vertically stretched by a factor The graph of y = sqrt(x) is vertically stretched by a factor
Video: Gas exchange - driving force

For a complete list of videos, visit our video library