Civil Service Exam Reviewer · Reading Comprehension · medium

The Shift Toward Renewable Energy

As concerns about climate change intensify, many countries are accelerating their transition from fossil fuels to renewable energy sources such as solar, wind, and hydroelectric power. Unlike coal or oil, renewable sources do not deplete over time and generate significantly lower carbon emissions. However, this transition is not without challenges. Renewable energy infrastructure, such as solar panel farms and wind turbines, requires substantial upfront investment, and the intermittent nature of sunlight and wind means that energy storage solutions, like large-scale batteries, are essential for maintaining a stable power supply. Governments have responded to these challenges by offering subsidies to energy companies and tax incentives to homeowners who install solar panels. Critics argue that the pace of transition remains too slow, given the urgency of climate targets, while others contend that abrupt shifts away from fossil fuels could destabilize economies dependent on traditional energy jobs. Despite these competing perspectives, most experts agree that a gradual, well-managed transition supported by continued technological innovation offers the most sustainable path forward for both the environment and the global economy.

According to the passage, why is energy storage considered essential for renewable energy?

  1. Because renewable energy is more expensive than fossil fuels
  2. Because governments require it by law
  3. Because solar panels produce excess electricity that must be discarded
  4. Because sunlight and wind are not constantly available

Answer

D. Because sunlight and wind are not constantly available

Solution

The passage explains that the "intermittent nature of sunlight and wind" makes storage necessary for a stable supply.

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