Answer:
The safety button doesn't click before the jar has been opened because it shows a sign of freshness. Once you have opened it there is no way to make it click again.
If bacteria gets stored in the jar they will produce gas. If the button does not pop or click after opened that is a sign that it may not be so safe to eat. Clicking shows that there is still vacuum to the jar.
Explanation:
Answer:
The responding variable
Explanation:
The independent variable in a study refers to the factor that is being manipulated in an experiment.
As the independent variable is changed, its effect on the responding (dependent) variable is accessed.
The responding variable changes as the independent variable is manipulated, they do not mean the same thing.
Benzene
- Benzene has low density than the water itself of about 0.9 g/cm³
Low denisty object than the water usually <u>floats on the water</u>.
Another example: orange peel which floats on water has density of about 0.84 g/cm³
![a^{(1/b)} = \sqrt[b]{a}](https://tex.z-dn.net/?f=a%5E%7B%281%2Fb%29%7D%20%3D%20%20%5Csqrt%5Bb%5D%7Ba%7D%20)
![16^{1/4}= \sqrt[4]{16}](https://tex.z-dn.net/?f=16%5E%7B1%2F4%7D%3D%20%20%5Csqrt%5B4%5D%7B16%7D%20)
![\sqrt[n]{a^n} =a^{n/n}=a](https://tex.z-dn.net/?f=%20%5Csqrt%5Bn%5D%7Ba%5En%7D%20%3Da%5E%7Bn%2Fn%7D%3Da)
![\sqrt[4]{2^4} =2^{4/4}=2](https://tex.z-dn.net/?f=%20%5Csqrt%5B4%5D%7B2%5E4%7D%20%3D2%5E%7B4%2F4%7D%3D2)
