JKSSB Written 2018
Answer & Explanation
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Correct Answer:
Option A —
Natural gas
Renewable vs. Non-Renewable ResourcesEnergy sources are generally categorized based on how quickly they can be replaced by nature:
Non-Renewable Resources: These exist in a fixed amount and take millions of years to form. Once we use them, they cannot be replenished in a human timeframe. Natural gas, along with coal and oil (fossil fuels), falls into this category.
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Renewable Resources: These are naturally replenished on a human timescale, such as sunlight, wind, and water.
Why the other options are incorrect:
The other three options are all Renewable sources:
Hydro energy (B): Relies on the water cycle, which is continuous.
Geothermal energy (C): Comes from the heat generated within the Earth's core, which is virtually inexhaustible.
Wind energy (D): Caused by the heating of the atmosphere by the sun; as long as the sun shines, there will be wind.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.