Answer:
There was too much land for one king/queen to rule alone.
Answer:
The need for new fertile land makes it a bait for communities that practice shifting cultivation to continue. Farming on the same soil for consecutuve number of years make sthe soil exploited of nutrients, therefore, since, this communities do not have mechanisms to restore fertility, or simply cannot afford, then they move to new fertile unexploited land.
Explanation:
Being a communal practice, shifting cultivation is part of the culture of groups that practice it, it is therefore inevitable for them to leave this practice that defines them.
Communal or tribal ownership of land also leads to the continued shifting cultivation since individuals have got no land of their own to maintain, and therefore, move from piece to piece over a period of time for bwtter fertile land.
Since Saudi Arabia's oil production is controlled by the government then its economy is a command.
The Panama Canal is located in Central America, in Panama. And hey! It's you again lol
The correct answer is for all clinical trials.
NIH refers to the National Institute of Health which requires every researcher to describe data and safety monitoring when it comes to all clinical trials. Clinical trials refer to experiments conducted within clinical research.