Which statement describes what is happening at high tide?
a. the moon is revolving more quickly than the earth is rotating.
b. the moon’s gravity is dragging water away from the equator.
c. the moon’s gravity is pulling ocean water into a bulge.
d. the sun’s gravity pulls with more force than the moon’s gravity.

The correct answer is option C.  

Explanation:

The gravitational force of the moon creates a force called the tidal force. This gravitational pull or tidal force pulls Earth and its water to bulge out on the side closest and the side farthest from the moon.  

These bulges of oceanic water are called high tides. The gravitational pull of the Sun and the moon makes the water in the oceans bulge that result in ongoing change between low tide and high tide.

Thus, the correct answer is option C.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.