Well it seems like they can live on land or water, I think the tectonic plates had alot to do with it also.
Answer:
C. Created competition and other countries began to explore new lands
When you say "diversity" I think of many things. So I have many answers:
1. People. Different people farming, means different plants and animals
2. Planting Crops. Planting different crops can prevent soil erosion and or soil exhaustion.
3. On the market. Different crops and meats on the market provides consumers with different products and nutrients they may need.
Idk if this helps, there wasn't much detail. Hope it helps! ;)
In the United States, both the President and the State Department are responsible for foreign policy, although most of these powers are delegated to the Secretary of States.
Beginning in 1800, members of congress who belonged to the two political parties held caucuses to nominate candidates for president and vice president.