Only the amount of gas is held constant.
The answer is 10. Each capital letter is an atom. The tiny numbers represent how many atoms of that type
I think the answer is c ... could be all but I pretty sure it’s c
The simple tissues are parenchyma, sclerenchyma and collenchyma. Chlorenchyma is a parenchyma, having chloroplast. It is a simple permanent tissue, having chloroplast.