Scientists on the side of earth opposite the epicenter of an earthquake detect mainly

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.

Which one of the following flowers can be described as having broad, spear-like foliage and fragrant little white bell-shaped flowers?

How to write the number 20.484.163 in expanded form