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The answer is
c. he should write down data clear, step-by-step instructions as he goes along
D. is the correct answer. Hope this helps! :)
Answer: D. The kinds of organisms that lived there long ago.
Explanation: Finding fossils in an area can help us learn about the kinds of organisms that lived there long ago. The fossil leave traces behind about what type of animal lived there and who the animal was.
If the mass of object increases, the weight will stay the same. The weight is a factor which is dependent on gravity, while mass is a constant.