Nuclear and hydraulics (or gravity)
The major nonrenewable and renweable sources of energy include oil and solar sources respectively.
Two major sources of energy on Earth are fossil fuels (like coal, oil, and natural gas) which are derived from ancient organic matter, and renewable energy sources (like solar, wind, and hydroelectric power) which are replenished naturally and do not contribute to carbon emissions.
The Earth system is powered by energy from two major sources: the Sun and the planet's internal heat.
there are not just two electrical sources of energy there are lots but two could be solar and biomass
Carbohydrates are major sources energy and fitness
Rivers
energy
Two sources of light energy include the sun and incandescent light bulbs.
The sun and the earth's interior are the two sources of energy that power earth's systems.
The two types of thermal energy sources are Geothermal and Thermal Energy
Alternative energy sources may be important in the future because they can help mitigate climate change by reducing greenhouse gas emissions, and they can help diversify energy sources and increase energy security by decreasing reliance on finite fossil fuels.
In nutrition, yes