The liver’s role is to:
a) mash up food
b) turn water into food
c) the stomach
d) remove harmful substances from the blood

Suppose that a comet that was seen in 563 a. d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

Abearing is designed to a reduce friction b. support a load c. guide moving parts such as wheels, shafts and pivots d. all of the above

What is the length x of the side of the triangle below? (hint: use the cosine function)