a) Seed clouding can initiate rain if water laden clouds and conditions that favour evaporation are present.
b) Desalination is reverse osmosis

Explanation

### Step-by-Step Text Solution:

**Step 1: Analyze the First Statement**
- The first statement is: "Seed clouding can initiate rain if water laden clouds and conditions that favor evaporation are present."
- Seed clouding (or cloud seeding) is a process where substances (like silver iodide or sodium chloride) are introduced into the atmosphere to encourage precipitation.
- The statement suggests that cloud seeding can initiate rain only if there are already water-laden clouds and favorable evaporation conditions. However, cloud seeding is effective even when the clouds are not fully saturated, as it helps in the formation of raindrops.

**Conclusion for Statement 1:** The first statement is **incorrect** because cloud seeding can initiate rain even in less than ideal conditions.
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