If they are busy people, they will miss the news. The given sentence is a kind of the sentence

First condition

Second condition

third condition

Zero condition

Explanation

In the First condition or Type 1 conditional clauses, the tense of the "if" clause is the present tense and the tense of the main clause is the future tense.

If clause (condition) Main clause (result)

If + simple present simple future

If this thing happens that thing will happen.