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How did barriers prevented plants animals and people from researching North America?

the oceans


What are some barriers in the past that prevent people from moving to North America?

Some barriers could be that we didnt have a lot of gas and oil to use as some resoureces.


What barriers prevented plant animals and people from reaching North America?

There are a few key barriers that prevent plants animals and people from reaching North America. The most prominent of these is the physical geography of the continent. The Atlantic Ocean to the east and the Pacific Ocean to the west make it quite difficult for species to traverse the continent. Additionally the Bering Strait between Asia and Alaska is a major obstacle that many species cannot pass due to its icy waters.In addition to physical geography there are also political and social actions that can prevent certain species from entering North America. For example international laws and regulations may prevent certain species from entering the continent through immigration or trade. Additionally climate change can also restrict the number of species that can reach North America by altering the temperature or precipitation in certain areas.To summarize the following are the major barriers preventing plants animals and people from reaching North America: Physical geography of the continent Political and social actions Climate changeThese barriers have a huge impact on the species that can reach and inhabit North America.


What natural barriers helped to prevent foreign invasion of Egypt?

There are two natural barriers that inhibited invasion but did not totally prevent it. They are the Sahara Desert to the west & the Mediterranean Sea to the north.


What countries reduced trade barriers with North America spur economy?

bolivia


What continents have the most nuclear power plants?

Europe and North America have the most nuclear power plants. France has the highest concentration of nuclear power plants in Europe, while the United States has the highest number of nuclear power plants in North America.


How many plants are there in north America?

flowers


What plants live in north america?

The plant that was domesticate in North America is corn which also was domesticated in South America


What plants are native to North America?

it is hard to know but almost all plants


Plants that are found in the deciduous forest?

north America


Why did geographical barriers such as rivers and mountains limit settlement in colonial North America?

Transportation technology was not well-developed


Do any plants in north America contain salt?

All plants to a certain degree contain salt. This is because salt is everywhere in any given environment in North America.