What is bias? not falsifying data
reporting things as they really are
basing reports on your personal beliefs
making objective observations

a strong feeling of favour towards or against one group of people, or on one side in an argument, often not based on fair judgement or facts

Explanation:

an interest in one thing more than others; a special ability

to influence somebody/something, especially unfairly; to give an advantage to one group, etc.

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.