Definitions / Recently Added

When molten lava flows into the ocean, it reacts vigorously with sea water to create large steam plumes laden with hydrochloric acid.

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46.1

FK Grade Level
College
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  • Vog

    The term ‘vog’ refers to the hazy air pollution caused by the volcanic emissions from Kīlauea Volcano, which are primarily water vapor (H2O), carbon dioxide (CO2), and sulfur dioxide (SO2) gas. As SO2 is released from the summit and east rift eruptive vents, it reacts in the atmosphere with oxygen, sunlight, moisture, and other gases and particles and, within hours to days, converts to fine particles, which scatter sunlight, causing the visible haze that is observed downwind of Kīlauea. 

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    55

    FK Grade Level
    High School
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  • Chemical warfare nerve agents (NAs) are one of the important groups of organophosphorous (OP) compounds that have been used as tactical weapons and for terrorism during recent decades . . .

    The NAs are traditionally classified into two classes of G and V agents, but also GV compounds (GV:2-dimethylaminoethyl-(dimethylamido)-fluorophosphate) which contained structures of both G and V agent . . .

    VX is the main and oldest agent of V series which has been produced in large quantities [1,5,6] . . .

    Recently a new type of NAs has been claimed to develop named "Novichoks" (means “newcomer” in Russia). This has been attracting increasing attention in recent years, particularly among non-governmental organizations (NGOs). It has been claimed that the toxicity of certain “Novichok” agents may exceed that of VX. The action mechanism is also dissimilar to the other NAs and thus conventional antidotes may be ineffective. Though, to date, there is nothing in details on such chemical has ever been declared in the literature [7,8]. NAs are delivered by missiles, bombs, spray and cluster spray [9].

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    46.9

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    High School
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  • Fake Data is intentional modification of existing software and revisions to generate a body of fake data to use as the basis for influencing opinion and government policy. A “click” which delivers a user to a location not intended is counted as a visit and rolled-up. The software interface can be manipulated to change the intended target for a preferred target resulting in misdirection to a page source unintended by user. “Shuffling” of page content can artificially increase unintended hits (fake) to customer sites for political and revenue purposes. The unintended hits can be viewed and reported as “agreement”, “interest, and even “approval”. This data is analyzed by AI and integrated into all future web activities and added to all other network available user devices including contact list and all social media connections.

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    24.4

    FK Grade Level
    College
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  • Fake news, a term that rose to prominence during the 2016 U.S. presidential election campaign, is not advertising but rather false information presented in the form of factual news. Fake news can have many purposes, including disinformation, mischief and revenue from clicks and page views. Fake news operations can be found across the political spectrum and are not confined to either conservative or liberal viewpoints, thus making it difficult for even the skeptical reader or viewer to judge the veracity of information.

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    43.2

    FK Grade Level
    High School
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  • A particle composed of a piece of genetic material—RNA or DNA—surrounded by a protein coat. Viruses can reproduce only in living cells.

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    34.2

    FK Grade Level
    High School
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  • FK Reading Ease
    83

    FK Grade Level
    Elementary School
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  • A preparation that stimulates an immune response that can prevent an infection or create resistance to an infection. Vaccines do not cause disease.

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    48

    FK Grade Level
    High School
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  • A microscopic living organism. Examples include bacteria, protozoa, and some fungi and parasites. Viruses are also called microbes.

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    3.3

    FK Grade Level
    College
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  • Disease that results when the immune system mistakenly attacks the body’s own tissues. Examples include multiple sclerosis, type 1 diabetes, rheumatoid arthritis, and systemic lupus erythematosus.

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    11.4

    FK Grade Level
    College
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