Question

Renewable energy sources, such as solar and wind power, are becoming increasingly popular due to their environmental benefits. These energy sources produce little to no greenhouse gases, which helps mitigate climate change. However, challenges such as the high initial cost of installation and the need for efficient energy storage solutions remain.
What is one challenge mentioned in the passage regarding renewable energy sources?

• A. They produce a lot of greenhouse gases.
• B. They are not popular.
• C. They require efficient energy storage Solutions.
• D. They are cheap to install.

Hint:

When answering reading comprehension questions, pay close attention to both the positives and negatives mentioned in the passage. Identify keywords like “however” or “but” that signal a shift in focus or tone.

Answer 1

The Correct Option is C

The passage clearly outlines both the benefits and challenges of renewable energy sources. On the positive side, it notes that solar and wind power are gaining popularity because they are environmentally friendly and produce minimal greenhouse gas emissions — which helps in the fight against climate change.
However, the passage then introduces two key challenges:
1. The high initial cost of installing renewable energy systems.
2. The need for efficient energy storage Solutions — because sources like solar and wind are intermittent (i.e., they don't produce energy all the time), storing energy for use during off-peak times is critical.
Option C directly reflects this second challenge and is, therefore, the correct answer.
Let’s evaluate the incorrect Option:
- Option A says renewables “produce a lot of greenhouse gases,” which contradicts the passage, as it explicitly says they produce little to none.
- Option B is wrong because the passage says renewables are becoming “increasingly popular,” not the opposite.
- Option D is also incorrect because the passage lists high installation cost as a challenge — meaning they are not cheap to install.