Answer:
The BOD5 for this sample is 5 mg/L
Explanation:
The BOD5 takes into consideration the difference between the initial DO and the final DO divided by the fraction of the sample tested in a 300 mL BOD flask. The problem states that the sample was directly placed in a BOD bottle so we assume that the volume used was 300 mL of the water sample. The fraction of water is 1 (300/300).
BOD5 = (10-5)/1
BOD 5 = 5 mg/L
Answer:
Use sunrise and sunset for approximate directions.
Face the sunrise and you are facing east; north will be on your left and south will be on your right. Face the sunset and you are facing west; north will be on your right and south will be on your left.
The sun rises due east and sets due west.
Answer:
The goal of sustainable development is to provide resources for the use of present populations without compromising the availability of those resources for future generations, and without causing environmental damage that challenges the survival of other species and natural ecosystems.
Explanation:
Why is sustainable use of natural resources important?
to ensure that natural resources are available for future generations
to help make daily life simpler by providing what every person needs
to encourage scientists to make new and elaborate discoveries
to prevent the exchange of resources from one region to another
The answer that you are looking for could be any of these actually The goal of sustainable development is to provide resources for the use of present populations without compromising the availability of those resources for future generations, and without causing environmental damage that challenges the survival of other species and natural ecosystems.
which is b. to help make daily life simpler by providing what evry person needs. i hope it is right
Holland is the answer to your question
