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

Author Question: Under aerobic conditions, the carbon in decaying vegetation in a lake ends up primarily as A) ... (Read 34 times)

panfilo

  • Hero Member
  • *****
  • Posts: 572
on: Aug 27, 2018
Under aerobic conditions, the carbon in decaying vegetation in a lake ends up primarily as
 
  A) methane, CH4.
  B) cyanide, CN-.
  C) carbon monoxide, CO.
  D) carbon dioxide, CO2.

Question 2

An early source of phosphorus for agriculture was
 
  A) urea.
  B) bird droppings.
  C) superphosphate.
  D) all of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lorealeza

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

B


panfilo

  • Member
  • Posts: 572
Reply 2 on: Aug 27, 2018
Thanks for the timely response, appreciate it

tranoy

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Gracias!

« previous next »
 

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).

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

An individual's performance can be limited by environmental conditions, such as temperature. Ac An individual's performance can be limited by environmental conditions, such as temperature. Ac
The pH scale is logarithmic. A low pH indicates acidic conditions, whereas a high pH indicates ... The pH scale is logarithmic. A low pH indicates acidic conditions, whereas a high pH indicates ...
How to choose the right payment plan with changing conditions (Question 2) How to choose the right payment plan with changing conditions (Question 2)
Human activity has released carbon from sequestration in long-term reservoirs Human activity has released carbon from sequestration in long-term reservoirs
Perennials Adapted to Desert Conditions Perennials Adapted to Desert Conditions
Connecting blunt ends to create recombinant DNA molecules Connecting blunt ends to create recombinant DNA molecules
Video: Secondary Active Transport

For a complete list of videos, visit our video library