<u>Answer:</u>
<em>Sewage treatment Programs
</em>
<u>Explanation:</u>
Sewage treatment programs are the right choice <em>because these are the source to create germs and if we understand how to be clean, most of the disease is avoided.
</em>
<em>Drug regulation:</em> It is nothing but the continuous treatment of prolonged disease where pills needs to be taken regularly to protect patients from death or to avoid disease become more severe.
<em>Physical fitness campaign:</em> This concentrate on to how to keep bod fit through exercise and it does not deal with hygiene.
<em>Nutrition Education:</em> It’s a kind of protection mechanism where in-take of food is really concentrated to fight against germs.
Answer:
(x+y)=`(`x*`y)
Explanation:
We have to apply some properties of logic gates (as involution and DeMorgan's law) in order to get the answer:
applying the last two properties:
So if we negate x and y, multiply them and then negate them again, it will be equal to a logic sum.
A partial dependency exists.
We have two types of dependency. The partial dependency and the transitive dependency.
The answer here is partial dependency. It occurs when the attribute only depends on some parts of the element. In such attribute, the primary key is the determinant.
It can be shown as;
XY→WZ , X→W and XY is the primary key or the only candidate key
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Answer:
because of the gravity of the earth
Explanation:
because of the gravity of the earth