When Percival Lowell insisted on the existence of Martian canals, even though his observations were discredited by other scientists, he exhibited
A) objectivity
B) stupidity
C) insanity
D) personal bias

Question

Quizplus · Accepted Answer

Percival Lowell exhibited personal bias by persisting in his belief in Martian canals despite being contradicted by other scientists. His belief was influenced by his personal preferences for a view of the universe in which humans were not alone.

When Percival Lowell Insisted on the Existence of Martian Canals