Fossils.
Early in the 20th century, Alfred Wegener, primarily, established the continental drift theory. According to Wegener, continents are mobile on the surface of the Earth and were previously connected to form a single supercontinent. Scientists did not think that the continents could migrate when Wegener was alive.
In rocks that are the same age but on continents that are currently far apart, ancient fossils of the same species of extinct plants and animals can be found. Wegener claimed that the species had coexisted, but that once they died and become petrified, the lands had separated. According to his theory, the creatures couldn't have crossed the seas.
1. Glossopteris seed fern fossils were too heavy for the wind to carry them that far.
2. Mesosaurus was a reptile that could swim, although it could only do it in freshwater.
3. The terrestrial reptiles Cynognathus and Lystrosaurus were incapable of swimming.
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Answer:
Yes
Explanation:
Asia is the world's largest and most diverse continent.It occupies the eastern four-fifths of the giant Eurasian landmass.
Answer:
D. Maori politicians
Explanation:
indigenous representation
Answer:
B. Aryans
Explanation:
The Varnas system began during the Aryan invasion of India. The Varna system, which is known as the caste system, divides society into 4 categories:
- Brahmins are educators like scholars, teachers, gurus; and spiritual leaders such as priests.
- Kshatriyas are the "warriors" whose roles are to protect society. The term can be translated as "authority," so these people are usually kings, rulers and the like.
- Vaishyas are productive class, or simply the businessmen. They are in charge of agricultural businesses and trading. They ensure the wealth of the society.
- Shudras are coined as the unskilled workers. They are in a sense, the "servers". They tend to the higher classes and work for them and are expected to remain loyal to them.
There are several reasons why many South Americans move from rural to urban areas, but in general many do this because there are more opportunities and higher pay in urban areas.
