Hello.
The correct answer is C) 1840's
Dr. Newsome has to describe the operational definition of birth order and SHYNESS.
Before a scientist can carry out an experiment, he must identify all his variables and each of these variable must have an operational definition. Operational definition refers to the application of operations that will be used to define each variable.
Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements. Stars shine by burning hydrogen into helium in their cores, and later in their lives create heavier elements.
The answer to this question is b
Democratic party is the answer
