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
- Which one of the following lists identifies the wastes from common manufacturing and industrial process, such as solvents that have been used in cleaning or degreasing operations?
When once a pocket of smoke, containing air pollutants, is released into the atmosphere from a source like an automobile or a factory chimney, it gets dispersed into the atmosphere into various directions depending upon the
1. prevailing winds
2. temperature
3. pressure conditions
Select the correct answer.
During the compaction test, the weight of compacted soil specimen along with mould is 38.2 N. The volume and weight of mould are 0.95×10-3 m³ and 20.5 N respectively and the water content is 12%. The dry unit weight of the compacted specimen will be nearly
- Which one of the following is a time-dependent reversible process in which materials under constant composition and volume soften when remolded?
- The compressibility of a saturated, clay-water system is determined by means of the apparatus devised by Terzaghi known as
