Question

What is Smearing And Challenge.

Answer 1

Smering- Damage the reputation of (someone) by false accusations; slander.

Challenge- A call To prove or justify something.

Answer 2

heyaa,,
Smearing________________________________________It is a technique of spreading or "smearing" time over a period of hours to account for leap seconds. and,
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challenge; a call to someone to participate in a competitive situation or fight to decide who is superior in terms of ability or strength.
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hope it helps☺☺☺