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A. Using information in the graph shown, compare the data trend from 1960 to 2015 for sub-Saharan Africa to the trend shown for Europe.
B. Using the data for ONE of the regions shown in the graph, explain why the trend may have an effect on the number of farms in developing countries.
C. Explain the degree to which the changes in grain yields may affect rural populations in countries in stage 4 of the demographic transition
D. Explain ONE limitation of the data in describing food insecurity at a regional scale.

A Using Information In The Graph Shown Compare The Data Trend From 1960 To 2015 For SubSaharan Africa To The Trend Shown For Europe B Using The Data For ONE Of class=

Sagot :

Answer:

A. From the information given in the graph, we have;

The grain yield in pounds per acre for Europe in 1960 is approximately 1,600 Pounds per Acre

The grain yield in pounds per acre for Europe in 2015 is approximately 5,100 Pounds per Acre

The rate of change of grain yield in Europe ≈ (5,100 - 1,600)/(2015 - 1960) = 63.[tex]\overline{63}[/tex] Pounds per Acre per year

The grain yield in pounds per acre for Sub-Saharan Africa in 1960 is approximately 800 Pounds per Acre

The grain yield in pounds per for Sub-Saharan Africa 2015 is approximately 1,250 Pounds per Acre

The rate of change in grain yield in Sub-Saharan Africa ≈ (1,250 - 800)/(2015 - 1960) = 8.[tex]\overline{18}[/tex] Pounds per Acre per year

Therefore, the grain yield per acre per year in Europe is increasing approximately 8 times the increase in Sub-Saharan Africa

B. Given that the rate of increase in the pounds of grain per Acre per year in Europe is progressively increasing above the average rate of world rate, the market for the grains produced in Europe will be partly the developing countries, thereby reducing the number of farms found in developing countries

C. In stage 4 demographic transition the population growth is stabilizing and therefore where there is an increase in grain yields, there will be an increase in farming and economic activity and a reduction in population growth

Where there is a decrease in grain yield, there will be an increase in activities to restore supply and therefore, a reduction in population

D. One limitation of the data in describing food security at a regional scale is the information required on the population figures in a given region involved in grain farming  

Explanation:

Answer: According to the graph, the grain yield in Europe is approx. 1600 (PPA) compared to the 2015 grain yield of 5100 (PPA), which would create an annual grain yield change of 63.6 pounds yearly. For Sub-Saharan Africa, the 1960's grain yield is 800 (PPA) compared to the modern 2015 grain yield of 1250 (PPA) which would create an annual grain yield change of 8.1 pounds yearly. Due to the data stating that the PPA rate of Europe is steadily increasing above the global rate, the agricultural (produce) market for European grain would be saturated with an unnecessary amount of produce, resulting in the reduction of the number of farms found in developing countries. In the demographical transition to stage 4, population growth is stabilizing and an increase in both farming and economic activity paired with a reduction in population growth will also see an increase in grain yields. One limitation of the data in terms of describing regional food insecurity at a regional scale is the lack of population data (growth and decline) to provide more accurate information/data on a region involved in agricultural farming.

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