Answer:
This type of meat is substance. If you were talking about meters then it would be a system of measurement.
<span>Fermentation is a metabolic process that changes sugar to acids, gases, or alcohol. It happens in yeast and bacteria, and also in oxygen-starved muscle cells, as in the case of lactic acid fermentation.</span>
This is an incomplete question, the image for the given question is attached below.
Answer : The wavelength of photon would be absorbed, 
Explanation :
From the given diagram of energy we conclude that,
Energy at ground state, A = 400 zJ
Energy of 2nd excited state, C = 1050 zJ
Now we have to calculate the energy of the photon.


Now we have to calculate the wavelength of the photon.
Formula used :

As, 
So, 
where,
E = energy of photon = 
= frequency of photon
h = Planck's constant = 
= wavelength of photon = ?
c = speed of light = 
Now put all the given values in the above formula, we get:


Therefore, the wavelength of photon would be absorbed, 
Answer:
1.51 × 10²³ molecules
Explanation:
Given data:
Number of moles of water = 0.250 mol
Number of molecules of water = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
1 mole = 6.022 × 10²³ molecules of water
0.250 mol × 6.022 × 10²³ molecules / 1 mol
1.51 × 10²³ molecules