Write a short note (about 80 words) describing the difference between renewable and non‑renewable energy resources. Give two examples of each.
Answer
Renewable energy resources are those that are naturally replenished on a human time scale, such as solar energy and wind energy. Non‑renewable energy resources are finite and deplete with use, examples being coal and petroleum. Renewable sources can be used repeatedly without exhausting the resource, whereas non‑renewable sources diminish as they are extracted and burned.
Step-by-step solution
- State the definition of renewable energy resources and mention that they are naturally replenished.
- Give two clear examples of renewable resources (e.g., solar energy, wind energy).
- Define non‑renewable energy resources as finite and exhaustible.
- Provide two examples of non‑renewable resources (e.g., coal, petroleum).
- Summarise the key contrast in one or two sentences.
Common mistake: Listing a non‑renewable source like coal as a renewable example.
Concept tested: Renewable vs non‑renewable energy
Published · How this solution was prepared and checked
Related questions
- 1 Write a short note (about 80 words) on the advantages of solar energy over fossil fuels. Give two advantages.
- 2 A river has a flow rate of 250 m^3 /s, a usable head of 30 m and the overall efficiency of the hydro‑electric plant is 85%. Using ρ = 1000 kg /m^3 and g = 9.81 m /s^2, calculate the electrical power output in megawatts (MW).
- 3 Which of the following is a non‑metallic mineral used primarily in construction?
- 4 Discuss the major environmental impacts of coal mining in India and suggest two appropriate mitigation measures.
- 5 Which of the following minerals is classified as a metallic mineral?
- 6 A coal seam is 2.5 m thick, extends 1 km in length and 100 m in width. Assuming the seam has uniform thickness, calculate the approximate volume of coal in cubic metres.