If the earth had no atmospheres at all what would the sky look like

Explanation:

After the shock of seeing animals falling from the sky and silence, comes what you may have already imagined; that is, we would die from lack of oxygen - and in about 3 minutes. The worst thing is that not even patients connected to respirators in hospitals or divers equipped with cylinders could survive, since there is a need for pressure to be able to breathe.

a.

explanation:

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete