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11111nata11111 [884]
3 years ago
11

Clear selectic 5 po 14. A group of high school students wanted to use a decibel meter to test whether or not their classroom was

noisier when their science teacher left the room. What is the dependent variable?
a. The amount of noise
b. Whether or not the science teacher left the room or not.
c. The type of students presents in the room.
d. The decibel meter​
Biology
1 answer:
maxonik [38]3 years ago
5 0

Answer:

a.The amount of noise

Explanation:

The dependant variable is the variable that changes when the science teacher leaves.

Independant variable would most likely be whether or not the science teacher is in the room.

Hope this helps!

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Which of the following does the enzyme primase synthesize?
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Diferença entre soluções líquidas e líquidos puros
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Portuguese version:

Não falo português mas:

Uma solução é formada quando algo é adicionado ou dissolvido em um líquido. Você faz uma solução quando adiciona sal ou açúcar a um copo de água. ... Desde que um líquido seja feito de uma única substância, ele permanece puro e é chamado de líquido. Quando algo é adicionado a ele, ele se torna uma solução.

English version: I don't speak Portuguese but:

A solution is formed when something is added or dissolved in a liquid. You make a solution when you add salt or sugar to a glass of water. ... As long as a liquid is made of a single substance, it remains pure and is called a liquid. When something is added to it, it becomes a solution.

Spanish version: No hablo portugues pero:

Se forma una solución cuando algo se agrega o se disuelve en un líquido. Usted hace una solución cuando agrega sal o azúcar a un vaso de agua. ... Mientras un líquido esté hecho de una sola sustancia, permanece puro y se llama líquido. Cuando se le agrega algo, se convierte en una solución.

fReNcH vErSiOn: Je ne parle pas portugais mais:

Une solution se forme lorsque quelque chose est ajouté ou dissous dans un liquide. Vous faites une solution lorsque vous ajoutez du sel ou du sucre à un verre d'eau. ... Tant qu'un liquide est constitué d'une seule substance, il reste pur et s'appelle un liquide. Quand quelque chose y est ajouté, cela devient une solution.

Ok, terminei, tchau.

Okay, I'm done, Bye.

Bien, he terminado, adiós.

D'accord, j'ai fini, au revoir.

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