Help please and could you please answer it as 1.
2.
3.
And so on please 50 points for this question!

1 atom

2 electrons

3 protons

4 neutrons

5 atomic number

brainliest plz haha!

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

the contamination

we are putting to many trash.