I would like to say A. but im not fully sure on this one
The answer is A- toxic chemicals in the air
Red squirrels are omnivores. They eat food of both plant and animal origin. Hope this helps!
It is a small section of DNA that contains specific instructions for a specific molecule, usually a protein. it’s purpose is to simply store information.
In a chemical reaction, the atoms and molecules that interact with each other are called reactants. No new atoms are created, and no atoms are destroyed. reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.