Avogadro tells us that we have 6.023 x 10^23 SiO2 units per gram, so there would be 6.023 x 10^23 / 60 ≈ 1 x 10^22 SiO2 units in a gram of pure SiO2, and with SiO2 composed of 3 atoms<span>, that puts us at </span>3<span> x 10^22 atoms per gram of SiO2. Now, a grain of sand does not weigh 1 gram. It weighs less</span>
B: during the early stages of meiosis, chromosomes in a homologous pair exchange segments, the process is called Crossing over.
Answer:
I would say by looking in a book.
Explanation:
If Abby wants to know HOW to find it, she will most likely find a book filled with information as to where it's located will be the most help. Hope this helps!
