The permanent gases whose percentages do not change from day to day are nitrogen<span>, </span>oxygen<span> and</span>argon<span>. </span>Nitrogen<span> accounts for 78% of the atmosphere,</span>oxygen<span> 21% and </span>argon<span> 0.9%. Gases like </span>carbon dioxide<span>, nitrous oxides, </span><span>methane</span>
True because when you take it out it affects it both ways
Proper environmental sanitation and the use of insecticides will prevent the spread of dengue fever virus.
<h3>What is a disease vector?</h3>
A disease vector is an organism which transmits pathogens to other organism.
Aedes aegypti mosquito is the vector for dengue fever. It transmits mosquito through its bite, thus introducing the virus into the blood.
The use of insecticides and the proper sanitation will help prevent the transmission of diseases.
At home, use of insecticide-treated nets will help prevent the spread of dengue fever.
Therefore, proper environmental sanitation and the use of insecticides will prevent the spread of dengue fever virus.
Learn more about disease vectors at: brainly.com/question/1086343
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Answer:
The correct word that should fit in this gap is technology.
Explanation:
The preliminary information about "modern, sophisticated manufacturing innovations..." is a definition of the impact of technology. Thus, these equipments used by the firms had dramatically reduced the prices for the targeted customers. This is an impact of "the technology." The article "the" is used because the innovations had been mentioned in the previous part of the sentence.
If a woman takes HIV medicines during pregnancy and childbirth and her baby receives HIV medicines for 4 to 6 weeks after birth, the risk of transmitting HIV can be lowered to 2% or less. Most HIV medicines are safe to use during pregnancy, and don't increase the risk of birth defects.
In general, the infected mother should simply stay healthy and intake HIV medicines while she is pregnant.
