This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Biochemical oxygen demanding (BOD) wastes include A) phosphorus and nitrogen-based fertilizers. ... (Read 58 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
on: Jul 16, 2018
Biochemical oxygen demanding (BOD) wastes include
 
  A) phosphorus and nitrogen-based fertilizers.
  B) sand, silt, and clay suspended in water.
  C) fish, aquatic insects, algae and other live aquatic organisms.
  D) organic biodegradable material that requires oxygen to be decomposed by bacteria.

Question 2

If the United States or Sweden had an age structure like a developing country,
 
  A) the current social security system would fail.
  B) colleges and universities would expect declining enrollments.
  C) the educational system would need to double the number of elementary schools.
  D) the retirement age would need to be raised.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aloop

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 16, 2018
Answer to Question 1

D

Answer to Question 2

C


audragclark

  • Member
  • Posts: 579
Reply 2 on: Jul 16, 2018
Wow, this really help

nyrave

  • Member
  • Posts: 344
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

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?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Classification of life histories based on juvenile survival, fecundity, and age at reproductive matu Classification of life histories based on juvenile survival, fecundity, and age at reproductive matu
The oxygen isotope curve illustrates the ratio between 16O and 18O. The oxygen isotope curve illustrates the ratio between 16O and 18O.
Tylenol biochemical pathway Tylenol biochemical pathway
Five Factors of Personality and the Traits they Include Five Factors of Personality and the Traits they Include
A typical zirconia oxygen sensor. A typical zirconia oxygen sensor.
An electrochemical cell is based on these two half-reactions An electrochemical cell is based on these two half-reactions
Video: Net filtration pressure and lymph formation, edema & blood velocity

For a complete list of videos, visit our video library