Answer: Microscope
Explanation: This is a kid answering :)
~Hello there! ^_^
Your question: Why should we not throw water in petrol fire..?
Your answer: We should not throw water in the petrol fire because oil, petrol etc are a bit weightless than water so it continues to flow over the water.
Hope this helps!
Answer:
The temperature of the town will be 15°F.
The equation showing the final temperature after drop say x degrees can be written as:
Explanation:
The current temperature in our town = T = 31°F
Temperature drop suggested by radio announcer = 15°
Temperature of the town after temperature drop = T'
The equation showing the final temperature after drop say x degrees can be written as:
Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids and gases from contaminated water. The goal is to produce water fit for a specific purpose. Most water is disinfected for human consumption (drinking water), but water purification may also be designed for a variety of other purposes, including fulfilling the requirements of medical, pharmacological, chemical and industrial applications. The methods used include physical processes such as filtration, sedimentation, and distillation; biological processes such as slow sand filters or biologically active carbon; chemical processes such as flocculation and chlorination and the use of electromagnetic radiation such as ultra violet light.
