What does the graph show about the importance of clean air?

people have a lower risk of dying from copd when compared to acute lower respiratory infections.
the health risk is the highest for getting lung cancer when people are exposed to indoor air pollution.
most people will die from the negative health effects associated with stroke as indoor dirty air builds up.
the risk of developing acute lower respiratory infection and ischemic heart disease is the same when exposed to indoor air pollution.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Consider this initial-rate data at a certain temperature for the reaction described by

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.