<span>Geologists generally know the age of a rock by determining the age of the group of rocks, or formation, that it is found in. The age of formations is marked on a geologic calendar known as the geologic time scale. Development of the geologic time scale and dating of formations and rocks relies upon two fundamentally different ways of telling time: relative and absolute.</span>
Answer: The chemical symbol always begins with a capital letter.
Explanation: If you look at the periodic table, there is no symbol which starts with a small letter
Answer:
the answer is
b. it carries blood towards the heart
Functional groups are a group of molecules attached to a carbon-based core of an organic molecule. Key functional groups are 3. phosphates
Answer: organism and reproduce and produce offspring