NEET BIOLOGY

Detailed explanation-1: -Wind, solar and nuclear are the main contenders. Sun, wind, waves, rivers, tides and the heat from radioactive decay in the earth’s mantle as well as biomass are all abundant and ongoing, hence the term “renewables".

Detailed explanation-2: -Types of renewable energy resources include moving water (hydro power, tidal and wave power), thermal gradients in ocean water, biomass, geothermal energy, solar energy, and wind energy.

Detailed explanation-3: -Clean energy is defined as energy created without the combustion of coal, petroleum, or petroleum products, without nuclear fission, and without the conversion of municipal waste. The three main sources of clean energy are wind energy, solar energy, and hydroelectric energy.

Detailed explanation-4: -The main alternatives to oil and gas energy include nuclear power, solar power, ethanol, and wind power.