Ozone, which is also known as trioxygen, is a chemically bonded compound, and contains three oxygens.
Answer: When you study environmental science, you commit to learning of accomplish important tasks for our Earth and our human population.
Explanation: Hope this helps! :)
Answer:
D, think of chemical changes. When iron rusts it is chemically changed. The other answers are a change in form or a property of iron.
They are similar in three main ways
1.Both DNA and proteins are polymers.
2. Both are made from smaller subunits joined together. DNA is made of subunits called nucleotides joined together and protein is made up subunits called amino acids joined together.
3. In both of them, these subunits or monomers are linked together by covalent bonds.
Nucleotides are a combination of a nitrogen - rich base that is either adenine, guanine, cytosine or thymine, together with a phosphate group and a sugar.
