Problem: Does "As they are long-lived birds, they may cover enormous distances during their lives; one record-breaking Manx shearwater is calculated to have flown 8 million km (5 million miles) during its over-50 year lifespan." answer the question "How far did a Manx shearwater fly over it's lifespan?"

A: yes

Problem: Does "As in many other countries, child labour in Switzerland affected among the so-called Kaminfegerkinder ("chimney sweep children") and chidren working p.e." answer the question "What types of child labour did Switzerland employ?"

A: no

Problem: Does "In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2." answer the question "What is the most common zinc ore?"

A:
no