II. Reading-Comprehension & Mixed-Type Questions Design (20%)
Based on the passage provided, please design five reading comprehension questions based
on the passage aligned with the format of the GSAT questions. At least three different
question types must be included (e.g., multiple-choice, matching, sequencing, or graphic
organizer completion) Provide the correct answer for each question and briefly indicate
what each question is intended to assess (e.g., main idea, detail, inference, vocabulary in
context, or text organization).
Passage
By the year 2050, the global population is projected to reach nearly 10 billion. This
demographic explosion presents a daunting challenge: how to feed billions more people
without destroying the planet’s remaining ecosystems. Currently, traditional agriculture
consumes 70% of the world’s freshwater and is a leading cause of deforestation. In response
to this environmental predicament, a radical innovation has emerged—vertical farming. This
method involves growing crops in stacked layers, often integrated into urban structures such
as skyscrapers or repurposed shipping containers.
The core of vertical farming lies in Controlled Environment Agriculture (CEA) technology.
Unlike traditional farming, which is at the mercy of unpredictable weather patterns and
seasonal changes, vertical farms operate under highly regulated conditions. Artificial LED
lights provide the exact spectrum needed for photosynthesis, while sophisticated sensors
monitor temperature, humidity, and nutrient levels. Because the environment is sealed, the
need for chemical pesticides is virtually eliminated. Furthermore, many vertical farms utilize
hydroponic or aeroponic systems, which can reduce water consumption by up to 95%
compared to conventional soil-based farming.
Proponents of vertical farming also highlight its potential to revolutionize food logistics.
Most traditional produce travels thousands of miles from rural farms to urban dinner tables,
contributing to a significant carbon footprint and food spoilage. By bringing the farm into
the heart of the city, vertical farming ensures that vegetables reach consumers within hours
of harvest, maximizing both freshness and nutritional value. This “hyper-local” production
model could be the key to enhancing food security in densely populated metropolitan areas.
However, the path to a vertical future is not without its hurdles. The most significant
drawback is the staggering amount of energy required to power the artificial lighting and
climate control systems 24/7. While solar and wind power offer potential solutions, the
current reliance on fossil fuels in many regions can make the carbon footprint of vertical
farming higher than that of traditional methods. Additionally, the initial capital investment
for infrastructure and technology is immense, making it difficult for small-scale farmers to
compete. Furthermore, vertical farming is currently limited to high-value leafy greens and
herbs; staple crops like wheat and rice, which provide the bulk of global calories, are not yet
economically viable to grow upward.
Ultimately, vertical farming may not replace traditional agriculture entirely, but it represents
a crucial tool in our quest for sustainability. As technology advances and energy costs
decrease, these urban towers of green may soon become a common sight in the cityscapes
of tomorrow.