(Q).
Given the fact that:  By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.  Answer the question:   David is getting ready to fly into space on a rocket. As the rocket shoots upwards, part of the mass falls away, allowing the rocket to go higher or lower?
(A).
higher


(Q).
Given the fact that:  As the amount of water increases, the melting point of rock decreases.  Answer the question:   Rocks that have no water in them have a high melting point or low melting point?
(A).
high melting point


(Q).
Given the fact that:  The voice becomes deeper as the larynx in the throat grows larger.  Answer the question:   A person that has a small larynx will have what type of voice High or low?
(A).
High