Question

Feathers and furs keep birds and animals warm during cold weather because they have ___________ trapped in them.
A) Air
B) Water
C) Heat
D) Fat

Answer 1

Hint:Synonyms are the words that have the same or similar meaning and to avoid repetition synonyms are used. For example: the synonym of beautiful is pretty and adorable.

Complete answer:
We must find the meaning of warm and the meaning of words that are given in the options. And both the words should have the same meaning or the exact sense.
The meaning of warm is ‘hot, warming or cosy or comfortable or homely’. And we must find the correct answer from the options given whose meaning is the same as warm.
Option A) Air - is an incorrect answer because the meaning of air is ‘the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen’ and this is not the synonym of the word warm because their meanings are not the same. Thus, this is an incorrect answer.
Option B) Water - is an incorrect answer because the meaning of water is ‘a colourless, transparent, odourless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms’ and this is not the synonym of the word warm because their meanings are not same. Thus, this is an incorrect answer.
Option C) Heat - is the correct answer because the meaning of heat is ‘the quality of being hot; high temperature or hotness or warmth’ and this is the synonym of the word warm and they can be used in place of each other because they have similar meaning. Thus, this is the correct answer.
Option D) Fat - is an incorrect answer because the meaning of fat is ‘blubber or thick or overweight or heavy’ and this is not the synonym of the word warm because their meanings are not the same. Thus, this is an incorrect answer.

Hence the correct answer is option ‘C’.

Note:As per the sentence ‘Feathers and furs keep birds and animals warm during cold weather because they have ___________ trapped in them’ the word warm is used so we have given the synonym of the word i.e. heat. So, option C is the most appropriate answer as compared to any other option because they do not tell the synonyms of the word. So, the correct sentence is Feathers and furs keep birds and animals warm during cold weather because they have heat trapped in them.