Energy Resources and Storage

Urban industrial ecosystems are often referred to as fuel-powered ecosystems because they rely heavily on external energy sources (fossil fuels) rather than just solar energy to maintain their structure and function.

Renewable energy is the energy that is generated from the natural resources that can be replenished easily. Biogas is a renewable source of the energy from the given options.

Coal is a fossil fuel formed over millions of years and cannot be replenished on a human timescale, making it a non-renewable energy source.

Wood is considered a renewable energy source because it can be replenished by planting new trees within a relatively short period.

Lignite, natural gas, and coal are all fossil fuels (non-renewable). The sun is a renewable source of energy.

Thermal power plants generate electricity by heating water to produce steam, which then drives a turbine. Evaporation is central to this process.

Sources of energy which can be replenished quickly are renewable like hydel, wind etc.

Ocean current, producing ocean thermal energy, is a renewable source of energy.

Coal is non-renewable. Rest of all are renewable sources of energy.

Fossil fuels are non-renewable sources of energy among the following.

Solar energy is renewable source of energy.  And Sun is the predominant source of energy. 

Wind energy is useful. Wind mills has been used since ages. Wind mills are used to generate electricity. The kinetic energy of wind is utilised to run the wind mill.

Water is a source of hydel energy.
Biomass helps to produce biogas in rural areas.
Thermal power plants produce electricity by burning of coal.
All of them are sources of energy and produce electricity.

Among the following biomass is a non renewable source of energy. 

Electricity can be produced by another energy sources. It is not a primary energy form. It can be generated from renewable as well non-renewable sources of energy.