Jessica has driven exactly 90% of the distance to her friend's home. Which statement about this trip could be true?.

Remote sensing of the earth's surface and atmosphere may involve the use of what type of instruments?

If you perfer to learn by reading to yourself instead of participating in a group discussing, you are most likely an

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.