how a species changed over time how animals made a shelter the color of leaves on a plant the number of chambers in a dinosaur's heart
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: What can scientists learn about the past by studying sedimentary rocks?
Possibilities:
- how a species changed over time
- how animals made a shelter
- the color of leaves on a plant
- the number of chambers in a dinosaur's heart

how a species changed over time