Natural resources are the primary source of energy that we use to heat our homes, drive our cars, and run our computers. These resources are derived from the Earth and its environment. Let's explore this answer in detail:

1. Definition of natural resources:
Natural resources are materials or substances that occur naturally in the environment and can be used to fulfill human needs. These resources can be found in various forms such as solid, liquid, or gas.

2. Examples of natural resources used for energy:
- Fossil Fuels: Fossil fuels like coal, oil, and natural gas are formed from the remains of ancient plants and animals. They are burned to release energy in the form of heat or to generate electricity.
- Renewable Energy Sources: Renewable energy sources such as sunlight, wind, water, and biomass are also natural resources. These sources provide sustainable and clean energy alternatives to fossil fuels.

3. Heating our homes:
- Natural gas: Many homes use natural gas as a source of heat. It is extracted from underground reservoirs and distributed through pipelines.
- Wood: Wood is a natural resource that can be burned to produce heat. It is commonly used in fireplaces and wood-burning stoves.

4. Driving our cars:
- Gasoline: Gasoline is derived from crude oil, a fossil fuel. It is the primary fuel used in automobiles to power their engines.
- Biofuels: Biofuels, such as ethanol and biodiesel, are produced from renewable resources like corn, sugarcane, and vegetable oils. They can be used as alternative fuels for vehicles.

5. Running our computers:
- Electricity: The majority of computers and electronic devices run on electricity. Electricity is generated from various sources, including fossil fuels, nuclear power, and renewable energy.

In conclusion, the energy we use for heating our homes, driving our cars, and running our computers primarily comes from natural resources. These resources include fossil fuels like coal, oil, and natural gas, as well as renewable energy sources like sunlight, wind, water, and biomass. It is essential to explore and develop sustainable energy alternatives to reduce our dependence on non-renewable resources and mitigate environmental impacts.