Which type of street layout residents to better monitor a neighborhood? a. streets branching off main roads b. drive-through streets c. cul-de-sacs d. one-way streets

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.

When do you think it’s best to take the psat (what grade year / when in the year)?

Can you send me the answer for q11,12,13,14,am sorry it’s science