Monoculture carries great risks. A single disease or pest can wipe out swathes of the world's food production, an alarming prospect given that its growing and wealthier population will eat 70% more by 2050. The risks are magnified by the changing climate. As the planet warms and monsoon rains intensify, farmlands in Asia will flood. North America will suffer more intense droughts, and crop diseases will spread to new latitudes.
Consider the following graphs. The curves in the graphs indicate different age groups in the populations of two countries A and B over a period of few decades :
Country A
Estimated Population Data for Country A (in millions) Year <15 15-64 64+ 1950 0.2 0.35 0.05 1970 0.35 0.45 0.08 1990 0.32 0.8 0.1 2010 0.28 1.0 0.15 2030 0.25 0.95 0.25 2050 0.22 0.85 0.35
Years
<15
15-64
64+
Country B
Estimated Population Data for Country B (in millions) Year <15 15-64 64+ 1950 0.15 0.2 0.05 1970 0.25 0.35 0.08 1990 0.32 0.55 0.1 2010 0.35 0.75 0.15 2030 0.32 1.0 0.25 2050 0.28 1.1 0.35
Years
<15
15-64
64+
With reference to the above graphs, which of the following are the most logical and rational inferences that can be made?
-
- Over the last two and a half decades, the dependency ratio for country B has decreased.
-
- By the end of next two and a half decades, the dependency ratio of country A will be much less than that of country B.
-
- In the next two decades, the workforce relative to its total population will increase in country B as compared to country A.
Select the correct answer using the code given below.
Consider the following graphs. The curves in the graphs indicate different age groups in the populations of two countries A and B over a period of few decades :
Country A
| Year | <15 | 15-64 | 64+ |
|---|---|---|---|
| 1950 | 0.2 | 0.35 | 0.05 |
| 1970 | 0.35 | 0.45 | 0.08 |
| 1990 | 0.32 | 0.8 | 0.1 |
| 2010 | 0.28 | 1.0 | 0.15 |
| 2030 | 0.25 | 0.95 | 0.25 |
| 2050 | 0.22 | 0.85 | 0.35 |
Years
<15
15-64
64+
Country B
| Year | <15 | 15-64 | 64+ |
|---|---|---|---|
| 1950 | 0.15 | 0.2 | 0.05 |
| 1970 | 0.25 | 0.35 | 0.08 |
| 1990 | 0.32 | 0.55 | 0.1 |
| 2010 | 0.35 | 0.75 | 0.15 |
| 2030 | 0.32 | 1.0 | 0.25 |
| 2050 | 0.28 | 1.1 | 0.35 |
Years
<15
15-64
64+
With reference to the above graphs, which of the following are the most logical and rational inferences that can be made?
-
- Over the last two and a half decades, the dependency ratio for country B has decreased.
-
- By the end of next two and a half decades, the dependency ratio of country A will be much less than that of country B.
-
- In the next two decades, the workforce relative to its total population will increase in country B as compared to country A.
Select the correct answer using the code given below.