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A flammable liquid produced from the remains of marine organisms buried under layers of sediments for millions of years
A flammable material, without a definite form, produced from the remains of marine organisms buried under layers of sediments found near oil deposits
The action of force by one object against another (in geyser, hot water escapes the pressure from under layers of Earth's crust)
Non-renewable flammable material (coal, oil, natural gas) made from the remains of plants and animals buried in Earth's crust used to produce heat and power
A simple nonflowering plant, examples seaweeds and many single-celled forms. Algae contain chlorophyll but lack true stems, roots, leaves, and vascular tissue
A resource that forms at a rate that is much slower than the rate at which the resource is consumed
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