Answer and Explanation: When Sedimentary rocks are heated with lot's of heat and pressure, they will melt and be back again to magma. After a while it would cool and also get harden and will become Igneous rocks.
Remember that a controlled variable is a variable that stays the same thoughout the experiment.
it wouldn't be a. because two different wires were used
the final length of the wax would be your dependent variable, so it wouldn't be c.
the thermal conductivity is the independent variable so it isn't d.
the original length of the wax was the same for both.
So B is your answer.
In a supermarket it is likely that the store will be divided into many categories to ensure the customer is able to find what they are looking for promptly. for example, at Walmart, you may find a clothing section, a toy section, a produce section, toiletries section, makeup section and bakery section among many others. this style of organization allows for customers to know exactly where they must go to find what they are looking for - if they would like to purchase an apple they would go to produce etc.
