Consider the following statements regarding solar distillation : 1. Distillation is the process to convert saline water into freshwater. 2. About 20 percent of water available on the earth is brackish. 3. Only 30 percent of water available on the earth is fresh. Which of the above statements are correct?
To determine the correct statements regarding solar distillation, let's evaluate each statement:
Statement 1: Distillation is the process to convert saline water into freshwater.
This statement is correct. Distillation involves heating saline water to produce vapor and then condensing it back into liquid, resulting in freshwater by removing impurities and salts.
Statement 2: About 20 percent of water available on the earth is brackish.
This statement is incorrect. In reality, only a small percentage of the Earth's water is brackish. Most water is either saline or fresh, with about 97.5% being saline and only a small portion, approximately 1% of the total water supply, being brackish.
Statement 3: Only 30 percent of water available on the earth is fresh.
This statement is incorrect. Approximately 2.5% to 3% of the Earth's total water resources are fresh, not 30%.
Based on the analysis:
- Statement 1 is correct.
- Statement 2 is incorrect.
- Statement 3 is incorrect.
Therefore, the correct answer is 1 only.
Important Questions from Miscellaneous-Engineering
- A well foundation of 6 m external diameter and of 5 m internal diameter is sunk to a depth of 15 m in a deep deposit of sand. If the average N value of sand is 20, the load that the well can carry by bearing alone will be nearly
What is the maximum depth to which a trench of vertical sides can be excavated in a clay stratum with c = 50 kN/m², y = 16 kN/m³, β = 90°, ¢ = 0°, Fc = 1 and N = 0-261?
- Which one of the following is an example of reinforced earth wall?
- Which one of the following data is not required for design of a weir or a barrage?
- In case of design of a weir or a barrage by providing a higher afflux, the waterway and, therefore, the length of the weir can be reduced, but it will result in
