Smita is experimenting with how a paper airplane's shape affects the distance it will fly. Which action is the result of her logical reasoning?
A. She follows her procedure carefully.
B. She records only the data that support her favorite hypothesis.
C. She decides to use the same type of paper for each airplane.
D. She decides to perform the experiment outside on a windy day.
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Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis

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