I think release of chlorofluorocarbons (cfcs) is most closely associated with sunburns. CFCs are green house chemicals that are more potent than the current greenhouse chemicals such as carbon dioxide and methane,and therefore should not be released to the atmosphere. CFCs release free chlorine which is responsible for destabilizing and destroying the ozone layer, which absorbs most of the UV radiations.
Answer:
The beginning of Cambrian period was about 541 million years ago and ends about 484.5 million years ago.
Explanation:
Cambrian period is a geographical period that appears in Paleozoic Era and lasts at Phanerozoic Eon to the beginning of Ordovician Period and the name was given as most of the sedimentary deposits were found at that period The majority of living organism includes unicellular or some multi cellular complex life forms.
Most live forms were aquatic and arthropods were the most dominant animals in the water that are known by studying the fossil records.The species adapt themselves to change with the environmental variations.
Animals like <em>Protichnites</em> and <em>Climactichnites</em> were found during this period.
The fossil records also suggested the presence of euthycarcinoides that are the extinct arthropod species.
Answer:
it's a structure of distinctive morphology and function, includes nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes, and the cytoskeleton
The symptoms of a serious heat emergency which will require immediate transport are<u> a flushed face, a high temperature and hot and dry skin.</u>
Alterations in mental status may indicate heat stroke and necessitate prompt medical intervention. Cooling comes first when treating extreme heat illness.
There are some symptoms:
Heat exhaustion is a common medical condition caused as a result of exposure to heated atmosphere resulting in body getting overheated
To learn more about symptoms here
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