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 160 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
Gracias!

hramirez205

  • Member
  • Posts: 345
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Types of transporters based on the direction of transport. Types of transporters based on the direction of transport.
Some of the bacteria that can fix atmospheric nitrogen, converting it into a form usable by plants. Some of the bacteria that can fix atmospheric nitrogen, converting it into a form usable by plants.
Invasive species in Canada include (a) zebra mussels, Dreissena polymorpha, (b) sea lamprey, Petromy Invasive species in Canada include (a) zebra mussels, Dreissena polymorpha, (b) sea lamprey, Petromy
Nitrogen Cycle Nitrogen Cycle
The biochemical reactions of near-infrared light The biochemical reactions of near-infrared light
The places on Tom’s body where touches elicited sensations in his phantom hand. (Based on ... The places on Tom’s body where touches elicited sensations in his phantom hand. (Based on ...
Video: Protein Structure - Primary, Secondary, Tertiary and Quaternary

For a complete list of videos, visit our video library