If they get an impression, they are able to cast it and take it to a lab. If it is a shoe then they would<span> have to take the object to the lab.</span>
Some common elements that are gaseous state at room temperature are:
Oxygen
Nitorgen
Fluorine
Chlorine
Hydrogen
Helium
In addition, all of the elements in group VIII are gases too, they have an octet of electrons (complete outer electron shell) , they're really stable and therefore they're called noble gases. Some examples from group VIII include helium, krypton, xenon etc.
Substance exist as gases in room temperature is due to their boiling point, where is it lower than the room temperature (usually around 25°C). If their boiling point is higher than room temperature, they should exist as either solid or liquid, which is how the majority of the elements in the periodic table is.
The correct answer is Liver
The letter I is just there. Blood type problems will usually have

and

= blood type A

and

= blood type B

would be blood type AB
<span>

would be blood type O.
</span>
So the answer would be B since B is the only option that the offspring would be only blood type B, which is the same as their parents.