Does the sentence "The Centre For Co-Curricular Studies is home to the Science Communication Unit which offers master's degrees in Science Communication and Science Media Production for science graduates." provide a valid answer to the question "Which unit is a part of the Co-Curricular Studies that offers master's degrees?"

A: yes

Does the sentence "A free, elevated people mover, Metromover, operates 21 stations on three different lines in greater Downtown Miami, with a station at roughly every two blocks of Downtown and Brickell." provide a valid answer to the question "How many miles long is Metrorail?"

A: no

Does the sentence "It was eventually determined that the destruction of the ozone was caused by chlorofluorocarbons (CFCs) emitted by human products." provide a valid answer to the question "What chemical was discovered to have caused the hole in the ozone?"

A: yes

Does the sentence "As slavery became a racial caste, those who were enslaved and others of any African ancestry were classified by what is termed "hypodescent" according to the lower status ethnic group." provide a valid answer to the question "What caused lower classification status for African Americans?"

A:
yes