SAT Question of the Day
The SAT question of the day is a Sentence Completion Question that has already been addressed on this blog: click here to see an explanation.
ACT Question of the Day
The ACT question of the day is a Science Question that asks you to interpret the information in a table.
Start by paraphrasing the question. You have two samples and you don't know which is from a depth of 15 cm and which is from a depth of 20 cm. You want to use the information you know about these depths to find out the depth of each sample. Which information would NOT confirm the depth of the sample?
Look up at the table. Ignore all the information except the last two rows that show information about the depths of 15 cm and 20 cm. Anywhere that the charts show different values for the same thing that is measured, you could use that information to confirm the depth of the sample. However, if the information is the same for both depths, knowing that value will NOT help you identify which sample comes from which depth. All of the values listed are different except for one! If you look at O2, in the last column you will notice that the value is 0 for both depths. You cannot tell these two samples apart by looking at O2, so you have your answer!
The correct answer is (A).
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