Examlex
In order to determine if Marta had a stroke,the doctors used a computer-enhanced X-ray image of her brain,a technique known as a fMRI.
Ozone
A form of oxygen with three atoms per molecule, forming a layer in the Earth's atmosphere that absorbs most of the sun's ultraviolet radiation.
Ultraviolet Radiation
A type of electromagnetic radiation with a wavelength shorter than that of visible light but longer than X-rays, capable of causing chemical reactions and damaging living tissues.
Oxygen
Oxygen is a chemical element with symbol O, essential for cellular respiration in most living organisms and a key component of Earth's atmosphere.
Cyanobacteria
Photosynthetic microorganisms, also known as blue-green algae, that are important for oxygen production and are found in many aquatic environments.
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