Overcrowding and slums developed in many impoverished countries in the 20th century, mostly due to large migrations to cities from people looking for work.
Answer:
Scale on a map is important in order to give the map reader a sense of size. Maps are just about always smaller than what they really represent, and scale is a way of quantifying how much smaller they are.
First, find yourself a map. Then, using two points, find both the distance on the map and the true distance. Next, you divide the true distance by the measured map distance, and find your scale. Last, you need to place that ratio onto your map.
The railroad tracks are parallel, because they go the same direction and don't intersect
Culture Definition: The total knowledge, attitudes, and behaviors shared and passed on by the members of a specific group.
Answer: mantle and sillicates
Explanation:
