wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Biological oxygen demand (BOD) is a standard criterion for


A

Measuring oxygen levels in blood

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

Computing oxygen levels in forest ecosystems

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

Pollution assay in aquatic ecosystems

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D

Assessing oxygen levels in high altitude regions

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C

Pollution assay in aquatic ecosystems


The correct option is C:
Explanation of correct option-

  1. The amount of oxygen needed by biological organisms such as bacteria in a given water sample for a breakdown of organic matter by oxidation process is called the Biochemical Oxygen Demand.
  2. BOD is often used in wastewater treatment plants and is used as an index of the degree of organic pollution in water.

Explanation of incorrect option-

Option A-

  1. Measurement of oxygen levels in the blood is done by a pulse oximeter.
  2. This device is able to determine the percentage of oxygen in the blood by using a cold light source.

Option B-

Oxygen levels in forest ecosystems can be measured by Audus apparatus or by counting the bubbles evolved from the pondweed.

Option D-

Oxygen levels in high-altitude regions cab are assessed by oxygen meter.

Final answer: Biological oxygen demand (BOD) is a standard criterion for Pollution assay in aquatic ecosystems


flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
For Numbers Ending in 1
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon