Question

1 min speech on renuabel energy

Answer 1

Renewable energy is energy that comes from resources which are naturally replenished on a human timescale such as sunlight, wind, rain, tides, waves, and geothermal heat.Most of these renewable energies depend in one way or another on sunlight. Wind and hydroelectric power are the direct result of differential heating of the Earth's surface which leads to air moving about (wind) and precipitation forming as the air is lifted. Solar energy is the direct conversion of sunlight using panels or collectors. Biomass energy is stored sunlight contained in plants. Other renewable energies that do not depend on sunlight are geothermal energy, which is a result of radioactive decay in the crust combined with the original heat of accreting the Earth, and tidal energy, which is a conversion of gravitational energy.Renewable energy — wind, solar, geothermal, hydroelectric, and biomass — provides substantial benefits for our climate, our health, and our economy.Renewable energy can serve as a replacement to electricity, motor fuels, rural energy and heating. Many people might discount renewable energy sources right off the bat just by looking at the definition. They wouldn’t hesitate to question why it is necessary to switch to sources like sunlight, wind, or rain. The way they see it, these are not very reliable sources of energy. This is why the question can only be begged: what are the real benefits of renewable energy sources? While there are certainly advantages and disadvantages to switching to renewable energy, it is quite arguable that the benefits of using such sources outweigh the shortcomings of it, especially in the future.Of course, the shortcomings are all things that can, with time and money, be fixed due to the rapid technological advancements our country makes on a nearly annual scale. The benefits of renewable energy sources are breathtaking, and while we may not quite be in a position to fully switch over to renewable energy sources just quite yet (requiring a balance of renewable energy and other sources for now), it is imperative that we look ahead to the future.

Answer 2

Renewable energy sources  are continually renewed by the cycle of nature and are considered to be practically inexhaustible. For eg, the sun, wind, rivers, organic material such as wood and even household and agricultural wastes.

1. They are practically inexhaustible sources of energy and contribute in  reducing dependence on conventional energy resources.
2.They are domestic sources of energy and contribute to increase energy independence and security of energy supply at the national level.
3.The are economical and have low operating costs.
4.They are eco-friendly and can be used fo recycling as well.