Answer:
They hiked over a land bridge
Explanation:
The prevailing theory proposes that people migrated from Eurasia across Beringia, a land bridge that connected Siberia to present-day Alaska during the Last Glacial Period, and then spread southward throughout the Americas over subsequent generations.
Question: Which of the following situations would be likely to cause scarcity?
Choices:
A) canals and roads that improved trade across longer distances
B) a natural disaster which destroyed many farms in a region
C) one group taking control of all agricultural production in a region
D) lack of money to purchase improved equipment for farming
Answer: <u>B) A natural disaster which destroyed many farms in a region.</u>
<em>Hope this helps!.</em>
<em>~~~~~~~~~~~~~</em>
<em>~A.W~ZoomZoom44</em>
The correct answer is can be reversed with no net change in either system or surroundings
Reversibility is a property that expresses the possibility of making the physical processes run in the opposite direction, infinitely varying the conditions that cause them.
The concept of reversibility has great importance in thermodynamics (in the foundation of its second principle), since it is the only type of processes that use the least amount of energy possible; thus, reversibly, the physical processes give their greatest performance.
In practice, it is not possible to obtain a completely reversible evolution of a process, because for this to happen, it should take place in an infinitesimal way, and, therefore, take an infinite time to complete. However, in order to obtain the highest possible efficiency, motors, machines, etc., are designed in such a way that the processes carried out on them are extremely similar to reversible processes.
Answer:
I think that it is 1 3 and 4
Explanation:
Social development is defined as prioritizing human needs in the growth and progression of society. Social development also governs the norms and conventions that govern human interaction. The focus is on improving the lives of regular citizens, especially the poor, to make society a better place for everyone.
