Answer:
I think the major limitation of her experiment is :
C. She cannot explain what causes the difference
To find this out, she need to find out which could be the independent variable (such as the machine, tire, wind, etc)
<em>Hope it helps answer the question! Also good luck on the test:)</em>
They all form in great clouds of gas and dust, they begin life with same chemical composition as the Sun: about 3/4 hydrogen and 1/4 helium and no more than 2% consisting of elements heavier than helium. They DIFFER in size, age brightness, and temperature.
The answer would be "B", this is because particle motion is the same thing as heat, and you can tell the images are going in order from lowest heat to highest heat.
Africa is the most likely where most hominids originated from.
Answer: A physical change
Explanation: since the melted they are still Crayons. You can freeze it and it would still be a crayon. So it was only a physical change