Give me two reasons why streak plates are incubated inverted?

Question

With the agar uppermost

Answer 1

1. Stops condensation dripping on the agar
2. Stops you from only picking up the lid and exposing the agar to the risk of air contamination

Answer 2

You get condensation while you're incubating. with the intention to maintain the subculture sterile, you do no longer choose something in any respect falling on it. you invert the plates so as that it does no longer fall on your subculture.

Answer 3

I only know that it is because it helps prevent condensation and contamination.