Question

classify the statements as true or false. fossils help scientists date rocks. the map of earth has changed over millions of years, but it is now set. sometimes younger rock layers are found beneath older rock layers. no fossils from the precambrian era have been found because there were no organisms at that time. true false

Explanation:

1. The Earth's tectonic plates have been in motion for millions of years, constantly changing the map of Earth, so the statement "The map of Earth has changed over millions of years, but it is now set" is false.
2. Fossils are important for relative and absolute - dating of rocks, so "Fossils help scientists date rocks" is true.
3. Due to geological processes like folding, faulting, and thrusting, it is possible for younger rock layers to be found beneath older rock layers, so "Sometimes younger rock layers are found beneath older rock layers" is true.
4. Precambrian fossils have been found, although they are more difficult to identify and less abundant compared to fossils from later periods, so "No fossils from the Precambrian era have been found because there were no organisms at that time" is false.

Answer:

1. False
2. True
3. True
4. False