Answer:
Arderea de combustibili fosili, activități agricole, eșapament din fabrici și industrii, operațiuni miniere și poluarea aerului interior
Answer:
Natural sources include decomposition, ocean release and respiration. Human sources come from activities like cement production, deforestation as well as the burning of fossil fuels like coal, oil and natural gas.
Explanation:
Answer : The mass of the water in two significant figures is, 
Explanation :
In this case the heat given by the hot body is equal to the heat taken by the cold body.
where,
= specific heat of iron metal = 
= specific heat of water = 
= mass of iron metal = 32.3 g
= mass of water = ?
= final temperature of mixture = 
= initial temperature of iron metal = 
= initial temperature of water = 
Now put all the given values in the above formula, we get
Therefore, the mass of the water in two significant figures is,
<span>on plato it's 2,3–dimethylpentane
</span>
Organic molecules typically do not contain the noble gases, so they would contain all but Ne
