The tiny openings you are referring to are called stomata. Stomata are responsible for the exchange of gases (such as carbon dioxide and oxygen) and the regulation of water vapor in plants. They are primarily located on the underside of leaves to minimize water loss while still allowing for gas exchange.
As plants are able to make their own food and pass different gases through their leaves, there is a tiny opening (or pore) that is used for this exchange of gases and/or water vapor; found mostly on the under-surface of plant leaves(1 point)
1 answer