Answer:
C) Network of interconnected membranes.
Glass that has been spun into fine filaments and is used for insulation is known as the fiberglass. It is a common type of fiber-reinforced plastic using glass fiber. These fibers nay be randomly arranged, flattened into a sheet or woven into a fabric. They are strong and lightweight reinforcement used in composites and is the best all-purpose choice among reinforcements for creating composite parts with excellent strength, low weight, and dimensional stability.
I don’t know what the answer is but I would like to know
The answer is C, it helps the roots to down. Think of gravity, it keeps us in place
You can work out the concentration of H+ ions (denoted as [H+]) easily on a calculator if you know the pH, which you do. The easiest way to work out [H+] is to do
. In your case, the maths here would be
, which gets you an answer of 1.58x
, or 0.000158. For 6.2 it would be
, which gives you 6.31x
, or 0.00000063. As you can see, the concentration of H+ ions is greater in pH 3.8.
To put it simply, the [H+] decreases the higher up the pH scale you go, and increases as you go lower, but now you know the maths to work it out for yourself too.