Which is the independent variable in this experiment? amount of heat materials received Which is the dependent variable in this experiment? Which is a controlled variable in this experiment?

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .

c is the correct answer!

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

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