How did the peppered moth population change over time?

Air pollution is only caused by human activity, select the best answer from the choices provided ot of true or false

What's the waste product of electrons and pyruvate combining in fermentation?  

What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound