A qué científico se le atribuye la invención del microscopio?

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.