In Mexico City, what are the two things that are causing most of the pollution? If you answer with an explanation I will give you Brainlist PLEASE HELP ITS DUE IN 30minutes

What volume does 1.70 ×10–3 mol of chlorine gas occupy if its temperature is 20.2 °c and its pressure is 795 mm hg?

Which question could be best answered using the process of scientific inquiry? do different plates have different rock compositions? why did it take so long to develop the theory of plate tectonics? what are different cultural myths caused by plate tectonics? do plates move intentionally to cause volcanic eruptions?

How can a ringing telephone can be heard through a closed door