Which agricultural innovation led to an increase in food production and population in europe during the medieval period? a) green revolution b) two field rotation c) three field rotation d) introduction of the potato

The answer should be C) three field rotation 

Sixth step is a solution implemented in the decision-making process of solving a workplace problem

The earth's inner core is the earth's innermost part. it is primarily a solid ball with a radius of about 1,220 km (760 miles), which is about 70% of the moon's radius.[1][2] it is composed of an iron–nickel alloy and some light elements. the temperature at the inner core's surface is approximately 5,700 k (5,430 °c), which is about the temperature at the surface of the sun.