Question at position 4 Read the text in more detail and choose the most suitable option. The global food crisis will get worse between now and 2050 because ... 6.5 billion people are already affected by hunger.food demand is declining.poverty is increasing.the size of the population is growing.单项选择题
A
6.5 billion people are already affected by hunger.
B
food demand is declining.
C
poverty is increasing.
D
the size of the population is growing.

Question

Question at position 4 Read the text in more detail and choose the most suitable option. The global food crisis will get worse between now and 2050 because ... 6.5 billion people are already affected by hunger.food demand is declining.poverty is increasing.the size of the population is growing.单项选择题

A

6.5 billion people are already affected by hunger.

B

food demand is declining.

C

poverty is increasing.

D

the size of the population is growing.

BlackTom AI · Accepted Answer

Population growth increases total food demand, so a growing world population is the most direct reason the global food crisis could worsen by 2050.

1) Relevant knowledge points and concepts
- Total food demand equals per‑person consumption multiplied by the number of people. If population rises, total demand rises even if per‑person consumption stays the same.
- Agricultural production faces limits (land, water, yields, climate impacts). Faster demand growth than production growth creates shortages and higher prices.
- Income growth can raise per‑person dietary needs (more calories, more meat), amplifying demand when population rises.

2) Step‑by‑step reasoning
- Start with the basic identity: Total food required = Population × Average food per person.
- If Population increases, Total food required increases proportionally.
- Supply side (agriculture) must expand to meet that increased requirement; if it cannot (due to land constraints, water scarcity, climate change), shortages occur.
- Therefore a larger population by 2050 is a straightforward driver of a worsening food crisis.

3) Calculations / intermediate steps (conceptual)
- Example: If average food per person stays constant and population increases by 30%, total food needed increases by 30%. If production increases by only 10%, a 20% shortfall appears, worsening the crisis.

4) Why the correct answer is correct
- "The size of the population is growing" directly increases aggregate food demand and is a primary structural pressure on food systems to 2050. It explains why demand could outpace supply and worsen the crisis.

5) Why the other options are incorrect
- "6.5 billion people are already affected by hunger." This is factually incorrect in scale and treats a current statistic rather than a cause that will change future demand dynamics.
- "Food demand is declining." If demand were declining, the crisis would ease, not worsen.
- "Poverty is increasing." Global extreme poverty has generally declined over recent decades; even if poverty rose locally, it is not the central projected global driver like population growth.

Conclusion: The most suitable option is "the size of the population is growing." This matches the provided correct answer.

类似问题

World population growth currently involves the addition of about 80 Blank ______ more people each year.

Question 1.6 Choose the correct answer(s)The following graphs show the world population in millions from 1000 to 2010 and the world population growth rate in the 20th century. Based on this information, read the following statements and select the correct one(s).

Question 1.6 Choose the correct answer(s)The following graphs show the world population in millions from 1000 to 2010 and the world population growth rate in the 20th century. Based on this information, read the following statements and select the correct one(s).

Which of the following is not a potential business impact from the world’s population doubling in the next 40 years?

The world’s population will double in the next 20 years.

What is the cause of global human population growth over the last 200 years?

Question at position 5 By 2050, the global middle-class population is expected to have ... risen by 40%.grown to nearly three billion.increased by more than 70%.tripled.

Between 1750 and 2022, the world's human population surged from million to billion.

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