Answer:
Sedimentary rock layers contain information about the relative ages of events and objects in Earth's history. As you read earlier, sedimentary rocks form from the sediments that fall to the bottom of lakes, rivers, and seas. Over time, the sediments pile up to form horizontal layers of sedimentary rocks
The rock layers above the bone bed are younger than the bone bed. The rock layers below the bone bed are older than the bone bed.
Answer:
2 Refraction, Transition/bouncing?
7. Opaque, absorbs
Explanation:
Hiya!
You can use the example of dogs and humans, Dogs give protection and companionship while humans give a home and food to the dog!
This is called Mutualism by the way! :D
Good-Luck!!
Answer:
C. cell membranes
Explanation:
the black/dark material that is visible in many of these onion cells is cell membranes.