GRE Questions

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"The moon smiled at me" is the example of personification in the given options.

Personification is a technique in which we give objects human traits like emotions, gestures, speech,... by using metaphor. 

Here moon is an object which cannot smile but using metaphor sense, we gave that sense to it.

A practice to learn something is a Lesson.

Footsteps. 

Yes, as you walk forward, you will leave the footstep behind you.

synchronous motor can operate at lag lead and unity power factor also why because it is mainly depends on excitation

Ominous is the correctly spelt word in the given options. It means that giving the worrying impression that something bad is going to happen.

In each row, the third figure is a collection of the common elements (line segments) of the first and the second figures.

Keeping in mind the safety and convenience of passengers, both 'a' and 'b' follow. 'c' clearly suggests a remedy to the problem and hence it also follows.

Alliteration is an example of Consonance. Consonance is the repetition of consonant sounds in words that are close to one another in a piece of text.

Example is "Peter Piper picked a peck of pickled peppers."

Whereas

Assonance is the repetition of vowel sounds, sometimes creating end rhymes.