Answer:
they lasted for more than 200 years
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Your answer is ASEAN
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~Courtney
Answer:
he military cloak of the Roman soldiers, which consisted of a four-concered piece of cloth worn over the armour and fastened upon the shoulder by a clasp. It was a symbol of war, as the toga was the symbol of peace. An ancient Roman garment.
Answer:
so sorry I didn't help you but I really don't know the answer of this question and I did this because I did assembly point so that I can question one question from someone that's why I really sorry and thank you for free points
Answer:
A control should have been included in the investigation
Explanation:
It is impossible for the student to interpret a correct conclusion about his experiment, without adding a control treatment where he can really compare the differences between the variables.
Control treatment is an element of research that receives all factors, except the variable being tested. The control serves to make comparisons with the other treatments, allowing to observe the exact difference between a system where the variable was tested and the system where it was not.
In the case of the question above, it would have been necessary for the student to have placed a cart on a ramp of normal height and without sandpaper. That way he could compare the speed between this cart and the carts on the other ramps, thus having a correct result.
