The bones of the frog have similarities to trees. The frog's bones form a growth ring every year, in which it is what the Scientists find out about the frog's age (by counting it.) The age of trees can also be find in its rings (inside the trunk.)
Answer:
In mixtures substances are mixed. While in Solutions substances are dissolved.
Explanation:
in mixtures substances arent typically dissolved they are combined or mixed. in a solution those substances dissolve.
Answer:
Low pH
Explanation:
The skin has sebaceous glands that secrete sebum. Sebum makes a protective layer over the surface of the skin and imparts it an acidic pH due to the presence of fatty acids in it.
Mostly, the pH level of skin is maintained within the range of 3-5 (acidic) which in turn serves as one of the barriers against pathogen provided by skin. Likewise, sweat glands of skin secrete sweat which also imparts the acidic pH to the skin to prevent any infection.
Answer:
The balanced equarion is
4Fe + 3O2-------> 2(Fe2O3).
Explanation:
