Answer:
A) Linkage Institutions
Explanation:
I just got done answering this question and got it right.
1. Their melting the polar ice caps which is also melts the plight's of the polar bears.
2.it can lead to drastic disasters floods,and reduced acsess to food
3.it raise's the rate of global warming
In the study of history the available documents for studying a certain period is unchanging over time.
Option: B
Explanation:
History is the study of events and phenomena over space and time. Space means where the particular incident is taking place. Time means the period of occurrence of particular event. A certain period suppose the period of sultanate or mughal empire requires some documents, records to be studied in detail.
And these available documents, records can never be changed over time. History is study of things over changing space and time. Archaeological evidences also keep some valid documents for studying historical events.
Production of more food--the system allowed for more food to be produced which fed the workers in an industrial economy.
The 'four-field system' rotates crops between the 4 fields no longer needing to keep one empty because one of the crops would replenish the field with nutrients while the others take nutrients away from the fields. <span />
Took up the jobs of many of the men. This is because the men were fighting in battle