Question

1. what can fossils in rock layers tell us?

how big mountains are
what kinds of organisms lived long ago
how fast rivers flow
how much it rains today

1. why are rock layers important to scientists?

they show weather patterns
they help scientists learn about earth’s past
they are used to build houses
they contain electricity

Explanation:

For question 4: Fossils are preserved remains of ancient organisms, so they reveal what organisms existed in the distant past.
For question 5: Rock layers (strata) hold fossils and geological clues that record Earth's geological and biological history, letting scientists study past conditions and life.

Answer:

1. What kinds of organisms lived long ago
2. They help scientists learn about Earth's past