The one that usually responsible for protecting against noise is :
EPA
EPA protected all things from the source that probably caused health disturbance in an environment, which include sound pollution.
Answer:
Political / Regulatory
Explanation:
The political or regulatory environment of business comprises of different stakeholders which includes the government organization, political parties, legislation and laws. It is an environment which deals with activities of these stakeholders and factors affecting the administration of public affairs and business activities of different organizations.
Also, the regulatory environment deals with the activities or laws and legislation that have direct and indirect impacts on business operations. Such as:
1. Regulations on unfair business practices so as to create fair competition.
2. Protection of consumers from unfair business practices.
3. Ensure the society interest in business operations are not overridden by greed capitalist.
2. It discourages political participation
"The mass of Substance C is five times the mass of Substance B", the given statement is correct.
Answer: Option D
<u>Explanation:</u>
As Jessie added 16 gm. of Substance A to 4 gm. of Substance B Obtained certain amount of Substance C which can be calculated as follows:
amount of Substance C = Substance A + Substance B = 16 + 4 = 20 gm
Therefore, 20 gram of Substance C was obtained. Here, fourth statement is correct which says the mass of Substance C ifs five times the mass of Substance B to justify this, see the below:

As equações diferenciais lineares de primeira ordem possuem muitas aplicações e é uma das primeiras classes de equações abordadas nos cursos de EDO. A forma mais geral de uma equação diferencial ordinária, linear e de primeira ordem é
y
′
+
p
(
x
)
y
=
q
(
x
)
{\displaystyle y'+p(x)y=q(x)}, onde
p
{\displaystyle p} e
q
q são funções contínuas em um intervalo I.[1]