In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.
<span>They are not visible because the chromatin coils up,shortens,and thickens.</span>
Answer:
Deserts, Beaches and other sandy environments :)
Explanation:
That's hard. The action might be when you go to lift your feet off the ground and the reaction force is letting your feet touch the ground again while taking a stride. Hope this helps.