There were several disadvantages of early forms of money like the limestone, cattle and shells. Firstly they were really tough to transport from one place to another because of the huge size. Secondly these kind of money were very rare and so it was highly difficult to find them.
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<h3>What is signature course?</h3>
These are courses that allow student thinks beyond their level and also connect them with what the school has to offer.
Signature course requires deep learning hence cut across topics that are engaging.
Hence, Courses, offered by First-Year Experience, allow you to connect with top-level faculty around a variety of topics is known as signature course.
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Answer:
c
Explanation:
i guessed and got it right on Edgenuity your welcome
Answer:
FFTFT
Explanation:
Not sure about the last one. I would hazard a guess at T
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.