Examlex
This type of terrorism supports the interests of an ethnic or nationalistic group regardless of political ideology.
Cyanobacteria
Photosynthetic bacteria that produce oxygen as a byproduct of photosynthesis, found in various aquatic environments and historically significant for oxygenating the Earth's atmosphere.
Atmospheric Oxygen
The oxygen that is part of Earth's atmosphere, essential for the respiration of most living organisms and a product of photosynthesis.
Chloroplasts
Organelles found in the cells of plants and other photosynthetic organisms, sites where photosynthesis takes place.
Carbon-14 Dating
A method for determining the age of an object containing organic material by measuring the levels of carbon-14, a radioactive isotope.
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