The one after metamorphic rock is melting.
Answer:
d. The density of a substance is always the same, regardless of temperature.
Explanation:
Density is a characteristic property of water and defined as the mass per unit volume.
The density of a substance always remains the same at the same temperature regardless of the size of the sample. The density of the sample changes with temperature and pressure. for example : The density of a substance increases with a decrease in temperature as the volume increases.
Hence, the statement about density is not true is " d. The density of a substance is always the same, regardless of temperature."
Answer : The molar mass of hemoglobin is, 
Explanation : Given,
Molar mass of iron = 55.85 g/mol
0.349 % Fe by mass that means 0.349 grams of Fe present in 100 grams of hemoglobin.
or,
Now put all the given values in this formula, we get:
Thus, the molar mass of hemoglobin is,
