One geographic feature that is not a barrier between the coastal and interior regions of north africa is high plateaus mountains navigable rivers deserts

Sarah is making a scale drawing of a painting that is 48inches wide by 120 inches high her paper is 12 inches wide and 24 inches tall she decides to use a scale 1 inches equals 4 inches is this a reasonable scale

Which of the following can scientists estimate geologic time? a. observing rock sequences b. radiometric dating c. comparing fossils d. all of these

Weathering is an example of an external force of change. question 2 options: true false