Question

Indeed, Mars is close enough to us that it is visible to those _____

(who/whom) want to search for it even without

Answer 1

Who

Step-by-step explanation:

In this case, 'whom' does not fit the sentence. In cases such as these, use 'who' when the word is actually performing the action, like is said. However, use 'whom' when someone, or it, is receiving the action.

Hope this helps! :)