Which is not a reason the oval office is important and interesting to the public? A:The Oval Office reflects an unchanging style since President Roosevelt.

B:Much of the president's most significant work id done in the Oval Office.

C:The president has numerous important guests in the Oval Office, including world leaders.

D:As a symbol of the president, the Oval Office serves an important role in American history.

Late at night some traffic signals change patterns and become ?

Why do you need to classify the size of a particle

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.