Answer:
Explanation has been given below.
Explanation:
Let's consider solubility equilibrium of an ionic insoluble compound e.g. 
Equilibrium constant of this solubility equilibrium is represented in terms of solubility product (
) which is expressed as-
![K_{sp}=[Ba^{2+}][SO_{4}^{2-}]](https://tex.z-dn.net/?f=K_%7Bsp%7D%3D%5BBa%5E%7B2%2B%7D%5D%5BSO_%7B4%7D%5E%7B2-%7D%5D)
Now, if we add an ionic salt e.g. 
with a common ion 
then concentration of increases.
But, at a constant temperature, is constant.
Therefore, to keep constant, excess amount of will combine with free 
ion in solution and produce .
Hence, as a whole, solubility of decreases.
A. to remove dead organisms
Explanation:
The role of the fungus is to remove dead organisms from the ecosystem.
Decomposers plays very important role in the ecosystem.
- They allow for the continuous cycling of materials there in.
- Fungus and other micro-organisms are decomposers.
- They take up the remains of other plant and animal matter and breaks them down.
- this releases nutrients back to the soil and useful gases to the atmosphere.
learn more;
Decomposers brainly.com/question/12823338
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