Problem: Word: fall

Sentence 1: Fall prey to an imposter.

Sentence 2: The curtain fell on the diva.

Same meaning?
A: different meanings

Problem: Word: surface

Sentence 1: Earthquakes originate far below the surface.

Sentence 2: Three quarters of the Earth's surface is covered by water.

Same meaning?
A: the same meaning

Problem: Word: estimate

Sentence 1: An estimate of what it would cost.

Sentence 2: Many factors are involved in any estimate of human life.

Same meaning?
A: different meanings

Problem: Word: head

Sentence 1: Be careful when you pet that dog on the head; it may bite.

Sentence 2: We will consider performance issues under the head of future improvements.

Same meaning?
A:
different meanings