The silk road across northwest china was

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?

17. the soil erosion pictured here is the result of what? a. harvesting renewable resources at a rate greater than the sustainable yield b. a mudslide caused by excessive rains c. harvesting renewable resources at a rate lower than the sustainable yield d. the transition between geologic eras and eons

In a class of 20 students, what democratic form of governance makes the most sense