A. Food
B. Light
C. Oxygen
D. Essential minerals
Related Mcqs:
- Sewage drained into water bodies kills fishes because:?
- BOD of a river water is found very high. This means water __________?
- A balanced diet is:
- The lower limit of water availability is soil is known as____________?
- Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss??
- The process of killing the ineffective bacteria from the water and making it safe for use is known as
- A strong radiation inversion is more likely to occur on a ______________.
- The amount of solar radiation reaching the surface of the earth is called ____________.
- Chordates as lower fishes in fresh water appeared in:
- Respiration means:
