natural sources of heat energy - solar energy traffic lights

According to Michael Ritt, author of the physical environment, energy is the ability to work physically.
Thermal energy, also known as thermal energy, is an energy that can be converted from other types of energy.
Thermal energy is necessary to sustain life.
Natural sources of thermal energy can be found in plant and animal products, fossil fuels, the sun and inside the Earth.
The sun is the main source of external thermal energy on Earth.
The energy of the Sun travels to Earth in the form of radiation.
The amount of radiation we receive depends on the time and season of the day, but the constant heat is enough to sustain life.
Geothermal Energy Geothermal energy comes from inside the Earth.
Heat is generated within the core, which is made of solid iron surrounded by lava.
The core is hotter than the surface of the sun.
The energy is generated by the radioactive decay of the rock particles, resulting in magma.
People use geothermal energy by using hot springs or groundwater to heat houses and buildings.
Animal and plant products provide us with natural thermal energy.
When we eat hamburgers, animal sources or salads, plant sources, we get thermal energy in the form of calories, which provides us with fuel.
When we burn plant products such as trees, we generate thermal energy.
Thermal energy from biomass
Animal and Plant Products-
It turned out to be from the sun.
Plants grow directly through the process of photosynthesis using heat energy from the sun.
Animals eat plants for energy.
Humans eat plants and animals for energy.
Fossil fuels such as coal and gas fuels such as oil are natural sources of thermal energy.
These fuels have been created from the remains of plants and animals for millions of years.
We found them in the deposits beneath the Earth's surface.
When humans ignite fossil fuels, they burn and generate thermal energy.