Question : Eutrophication of a water body enhances:

Option 1: Organic matter production

Option 2: Biological oxygen demand

Option 3: Both (1) and (2)

Option 4: Neither (1) nor (2)

Question : Bacterial decomposition of biological material under anaerobic condition is:

Option 1: fermentation

Option 2: fertilization

Option 3: contamination

Option 4: composting

Question : Identify the function of the enzyme trypsin.

Option 1: Digesting proteins

Option 2: Breaking down carbohydrates

Option 3: Digesting roughage and fats

Option 4: Emulsifying insulin

Question : Identify a protein-digesting enzyme.

Option 1: Lipase

Option 2: Amylase

Option 3: Collagen

Option 4: Pepsin

Question : Which of the following can degrade detritus into simpler inorganic substances?

Option 1: Algae

Option 2: Phytoplankton

Option 3: Fungal enzymes

Option 4: Lichens