The abyss loomed mysterious and frightening in the ocean use the words in the sentence as clues to choose the corect synonym for the underlined?

What is the adjective for night? What happens if sun is not present? Is dawn the same thing as night? Would it be possible to live on a star? How do people measure the elevation of a mountain's summit? How many lights are on the Rockafeller Christmas Tree? When the moon is not quite roundwhere can the missing bit can be found? What does the compound microscopes focus light through? What did jack swigert stir that caused the explosion? Who did Zeus have kids with? How does nuclear energy relate to the sun? Is an absorption spectrum also called a bright line spectrum? What does a weatherman study? Did Apollo 13 really land on the moon? What cool names for a rocket? What did the builders of the Gothic cathedrals seek express through the use of space and light? How big are the pillars of creation? When did pioneer 12 travel to Jupiter? Can you find the south using the stars? Is sun stationary?

The abyss loomed mysterious and frightening in the ocean use the words in the sentence as clues to choose the corect synonym for the underlined?