According to the universal law of gravitation
a. everything has a gravitation force because everything has mass.
b. not everything has a gravitational force because not everything existed when gravity first existed.
c. gravity is uniform across the universe.
d. gravity only depends upon the mass of an object.

Read the paragraph and answer the question that follows: the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert which sentence should be revised to eliminate redundancy? the town of belmond, iowa, needs to add weather sirens. the loud and steady wail would warn citizens of approaching danger. if past history is an indication, the sirens will save hundreds of lives. with a prediction of a deadly storm season, the alert system is needed immediately.