Tag: physics

Although Force and Area, both are vector quantities, pressure is a scalar quantity.

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.

Gobar gas, vegetable refuse, and plants are all forms of biomass (renewable). Crude oil is a fossil fuel (non-renewable).

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.