answersLogoWhite

0


Best Answer

The only way a biochemical oxygen demand value could be negative is if oxygen increased in your incubation. This could result from several errors, but most likely light was allowed to penetrate your bottle allowing photosynthesis to occur. If everything was done correctly (e.g. insturments are calibrated and working, no errors were made in calculations) you should have at least a 1mg/L difference between initial and final dissolved oxygen readings yielding a positive value.

User Avatar

Wiki User

16y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Does a biological oxygen demand value would be a negative value?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Can dissolved oxygen value be a negative value?

it can't be negative but can be zero


What will happen to the chemical oxygen demand value if HgSO4 is not added?

the effect of Cl- is appear and the value of COD becomes more than the really value


Does a demand curve always have a positive slope?

Demand curves almost always have negative slopes. The Y value being price and the X value being quantity. The higher the price, the more negative the slope. There are very rare conditions where a demand curve could have a positive slope, but its not normally used in business classes.


Biological and cultural origin of filipino of his opposing value orientation?

The Philippines' cultural values have been influenced by a blend of indigenous Filipino, Spanish colonial, and American cultural traditions. Opposing value orientations in Filipino society may stem from a mix of individualistic and collectivistic tendencies. Traditional values emphasizing community harmony, respect for authority, and strong family bonds may conflict with newer values promoting individual decision-making, assertiveness, and self-expression.


What is the value of negative 9?

negative nine is the value of negative nine


What is a negative value?

A value that is negative, e.g., -5.


What does a negative add a positive equal?

If the absolute value of the negative is bigger than that of the positive, then the answer is negative. If the absolute value of the negative is the same, then zero. If the absolute value of the negative is smaller, then positive. Absolute value is the value ignoring the sign.


Does a positive value multiplied by a negative value equal a positive?

No, the product of the multiplication of a positive and a negative value is negative.


Will a negative number to the fifth power be a positive or negative value?

The result will be a negative value.


Can an absolute value equal a negative?

An absolute value can not be negative.


Does a negative value multiplied by a negative value eguals a negative?

No, like signs multiply to positive, unlike to negative.


A positive number minus a negative number is?

If negative value>positive value then result is -ve If positve value>negative value then result is +ve