Home › Bihar Board Class 12 (Science) › Biology › Environmental Issues › What happens when bacteria decompose dead algae?
What happens when bacteria decompose dead algae?
ADissolved oxygen is used up
BOxygen level rises sharply
CWater turns more alkaline
DTemperature falls steadily
Answer & Solution
Correct answer: A. Dissolved oxygen is used up
Bacterial decomposition consumes oxygen and can create anoxic conditions that kill fish and invertebrates.
Related questions
Why can heavy metals not be broken down in nature?Unlike bioaccumulation, biomagnification occurs across what?Acidic water and soil wash away which essential nutrients?Hydrochloric acid in acid rain comes from burning what?Natural water in the atmosphere is:Compared with natural particulate matter, human-made particles are usually:Ultrafine airborne particles are what size or smaller?Which atoms freed from CFCs by UV light catalyse ozone destruction?