A good reason for why tobacco smoke is considered a carcinogen is because it causes mutations leading to cancer.
For Absolute dating they assign a numerical date to each rock layer studied
For relative dating they go Through geological dating and stratigraphy processes. Also, they use Uranium Dating.
Explanation:
With a Child's blood type of O the parents will be a combination of:
O and O
or
A and A
or A and B
or B and B.
Answer:
Since we know the father is A, then the mother must be O.
Since With the Parents' combination of blood types of A and O, the child can have the following possible blood types: A or O.
Oxygen is the common characteristic which helps fire to burn and a flowering plant to live on earth. When oxygen combines with a suitable chemical, it releases energy in the form of heat.
