Power =(work done) / (time to do the work) = 240 J / 120 sec = 2 watts.
E=ERBIUM
L=LITHIUM
E=EINSTEINIUM
M=MAGNESIUM
E=EUROPIUM
N=NITROGEN
T=TITANIUM
S=SULPHURDIOXIDE
Hot and cold water rising and sinking through other water
is definitely a description of convection.
Tyrosine is an amino acid, which can be found in foods high in protein like eggs, meat, fish, beans and nuts. Amino acids are what make protein. Hope this helps!
I think the answer is Cirrus. They are flat feathery clouds that usually stretch long distances over the sky.