Gravity is a force of action that acts

a.) on nearby masses

b.) on no masses

c.) on select masses

d.) on every mass

D.) on every mass! Gravity is a force that attracts objects towards each other. Any object with mass exerts a force of gravity. The great the mass, the greater the force. The force of gravity between to objects decreases as the objects move further apart.

The horse latitudes-high-pressure zones about 30 degrees north and 30 degrees south of the equator.-warm air traveling away from the equator cools and sinks-weather tends to be clear and drythe doldrums-low-pressure near equator-air rises and spreads out toward the poles-rising moist air produces clouds and heavy rainthe westerlies-blow from the west-move from the horse latitudes toward the poles.-bring storms across much of the united statesthe tradewinds-blow from the east-move from the horse latitudes toward the equator  -strong, steady winds

Cardiac muscle causes movement in the bone.