Untitled Flashcards Set

Biomass

Renewable energy resources derived from organic materials such as firewood and manure.

Muscular Energy

Energy obtained from human and animal physical effort.

Wind Energy

Energy harnessed from wind using devices like wind turbines.

Water Energy

Energy derived from flowing water, typically utilized in water mills.

Coal

A fossil fuel that was a primary energy source during the Industrial Revolution.

Thermal Energy

Energy produced from heat, often associated with burning fossil fuels.

Steam Engine

A machine that uses steam power to perform mechanical work.

Internal-combustion engine

A device where combustion reactants and products act as working fluids.

Oil

A liquid fossil fuel that became significant in the early 20th century.

Solar Energy

Energy obtained from sunlight, used widely in the late 20th century.

Nuclear Energy

Energy produced through nuclear reactions, notably fission.

Hunter-gatherer

A subsistence lifestyle relying on hunting animals and foraging for plants.

Foraging

The act of collecting food from the wild, including gathering and scavenging.

Sharpened Stones

Oldowan tools used by early humans for cutting and hunting.

Neolithic Revolution

A significant transition from hunter-gatherer societies to agriculture.

Shifting Agriculture

An agricultural system involving temporary cultivation of land.

Subsistence Agriculture

Farming focused on producing enough food for the farmer's family.

Commercial Agriculture

Agribusiness focusing on producing crops and livestock for sale.

Mixed Farming

A practice involving the combination of crop cultivation and livestock rearing.