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22 Aug 2019

Your desktop houses its system unit in a frame made of metal. What is the term for this frame?

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Jarrod Robel
Jarrod RobelLv2
23 Aug 2019
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In a randomized controlled trial, patients with meningitis who were treated with corticosteroids had lower rates of death, hearing loss, and long-term neurological effects. Which of the following is a randomized comparison?

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Science Grade 9 Chemistry:

You are doing an experiment to see if drinking coffee at breakfast improves your marks. You divide your class into 2 groups. Group A drinks coffee in the morning and Group B does not drink coffee. When the students come into class you have them write a test. You found the average mark for Group A was 75% and the average mark for Group B 90%. (6 marks)

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Grade 9 Science experiment:

Experiment:  Compare brands of paper towels, to see which holds the most liquid. The independent variable in your experiment would be the brand of paper towel. The dependent variable would be the amount of liquid absorbed by the paper towel.

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