Answer: Yes, it does incriminate both Bill and Lucy. Both had DNA found at the scene which makes them both suspects until further investigations are conducted.
Explanation: The term "at face value" means without further investigation so it is just saying looking at what has been seen are Bill and Lucy suspects. This shows that they are because both have DNA found at the scene even though they may not have been the murderer they are being investigated.
Answer:
layer B is liquid because of the inner members and layer A is solid because of the outer members
To know which is a better solvent between the two, one should know what will be the solute. It really depends on what type of solute you have. If the solute is polar then water is the better solvent for that type of solute. However, when the solute is a nonpolar substance then carbon tetrachloride is the better solvent.
