Why are we not able to see viruses with the compound light microscopes?

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.

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.