A. CO2
B. O2
C. Water
D. Nutrients
Related Mcqs:
- In an aquatic ecosystem, the depth to which light penetrates is called __________?
- The primary productivity is minimum in the following ecosystem:
- Which ecosystem has the highest primary productivity?
- Which of the following ecosystem has highest gross primary productivity:
- The type of ecosystem with the highest mean plant productivity is __________?
- Which one of the following ecosystem type has the highest annual net primary productivity ?
- The simplest aquatic ecosystem can be seen in a ____________.
- The maximum biomagnification would be in which of the following in case of aquatic ecosystem??
- In an aquatic ecosystem, the tropic level equivalent to cows in grasslands is ____________.
- Zn, Fe, Cu, B, Mn and Mo are called micronutrient, because they are:
