Cellular respiration is not the same thing as breathing, but they are closely related. When you breathe in, you take in the When you breathe in, you take in the oxygen your cells need for cellular respiration. When you breathe out, you get rid of the carbon dioxide that your cells produce during cellular respiration
(hope this helps ^^)
<u>Answer:</u> The mass of iron (II) oxide that contains a million iron atoms is 
<u>Explanation:</u>
We are given:
Number of iron atoms = A million = 
The chemical formula of the given compound is 
It is formed by the combination of 2 iron atoms and 3 oxygen atoms.
According to mole concept:
1 mole of a compound contains 
number of particles
1 mole of iron (II) oxide will contain = 
number of iron atoms
We know that:
Molar mass of iron (II) oxide = 159.7 g/mol
Applying unitary method:
For 
number of iron atoms, the mass of iron (II) oxide is 159.7 g
So, for number of iron atoms, the mass of iron (II) oxide will be 
Hence, the mass of iron (II) oxide that contains a million iron atoms is
how u gonna expect someone to do all of that XD
Answer:
By using the techniques of archeology.
Explanation:
Students recover an individual's remains from a surface grave by using the techniques of archeology field to scrape away the layers of soil from that remains in a way that the remains can't be damaged. If they find the remains within 10 centimeters of digging, they can dig down further in order to dig out all the remains safely. The instruments of archeology field are used because they are light and can be used to dig out fossils of ancient organisms.
I believe it is the third option :)
