How has America changed over the years

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

Registrars maintain high a. standardized tests b. faculty payrolls c. transcripts d. sporting facilities

Scientists observed a rock stratum and discovered some fossils. the image shows the fossils they discovered. what can you interpret from the image? an illustration showing layers rock with fossils embedded in some rock layers1. the dinosaur and the mammoth existed after the trilobites.2. the dinosaur and the armored fish existed before the trilobites.3. the trilobites and the armored fish died before the dinosaur.4. the trilobites and the armored fish were born after the dinosaur.5. the early mammoth is older than the trilobites.