Mountain chains and river systems generally run North-South throughout the continent thus making for formidable barriers to East-West expansion.
Answer:
Option: a. 200 million years ago
Explanation:
Million years ago, Earth had one supercontinent called Pangaea and surrounded by an ocean (Panthalassa). Alfred Wegener proposed the concept of one big continent after putting together different records of confirmation. He was able to give his theory by examining fossils of plants, trees, animals, and reptiles that found in different continents. About 200 million years ago, the supercontinent began to split up into two parts; Gondwana from Laurasia. Today's countries, including Africa, Antarctica, India, South America, and Australia are part of Gondwana, where Europe and North America from Laurasia.
Answer:
Fast flowing waters .
Explanation:
the coriolis effect causes storms to spend in a counterclockwise direction . Jet Streams are narrow currents of fast-moving air in the upper atmosphere. They are created by the flow of air in the upper atmosphere which gets bent and channelled to the East Coriolis effect
Answer:
Oriente y Occidente son direcciones ... ¿la pregunta dice más?
eso si es una pregunta legítima :)