Question

1. grease and oil must be kept away from gen tanks because ______ a. grease or oil will contaminate the b. oxygen causes oil to freeze c. grease or oil can cause oxygen to d. oxygen will contaminate the oil or

Explanation:

Grease and oil are combustible substances. When in contact with oxygen in oxygen tanks, they can cause a dangerous reaction like combustion or explosion due to the highly - oxidizing nature of oxygen. So grease or oil must be kept away from oxygen tanks to prevent such hazards.

Answer:

C. grease or oil can cause oxygen to react dangerously (assuming this was the full correct option as the provided options seem cut - off but based on the principle of the question)