<span>The most common contaminant to be found in drinking water is microorganisms, nitrate and arsenic. Though water quality and monitoring has come a long way over the past few years, viruses, bacteria and protozoa like giardia lambia can be found in the water and often leads to wide spread illnesses.</span>
I believe Venus! because you can usually see it at sunset and at sun rise
The answer to this is older, but it's not a proven fact even though schools teach it as if it were. It is still just a theory if you think about it with how much the earth moves, areas of rock could be complete upside down and no one would know, it would be like history in reverse.
<h2>Answer:</h2>
As John is testing the effect of temperature on the solubility of sugar in water. To test this, he will measure the amount of sugar dissolved at different temperature level.
And then he will compare and conclude this that at what temperature how much sugar dissolved and how saturated and supersaturated solutions show a difference in concentration of sugar dissolved on the temperature difference.
