A tank which has been sealed for a long...

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Question 1 of 205eccef9ebacbc34ba4d46591

A tank which has been sealed for a long period of time can be dangerous because __________.

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Question 1 of 20

5eccef9ebacbc34ba4d46591

A tank which has been sealed for a long period of time can be dangerous because __________.

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🔍 Key Concepts

• oxygen levels in enclosed or confined spaces • how rusting (oxidation of steel) affects the air inside a sealed space over time • what typically happens to air composition when a tank is closed for a long period

💭 Think About

• Which of these choices describes a slow, continuous chemical process that can happen any time steel and moisture are present in a closed space? • Does a sealed tank naturally form a strong vacuum by itself, or does something specific have to remove the air? • In a long‑sealed tank, is the bigger danger usually that new poisonous gases are added, or that a normal life‑supporting gas is quietly used up?

✅ Before You Answer

• Identify which option explains a process that would steadily reduce breathable oxygen over time in a closed tank. • Eliminate any options that would require special or unusual conditions, rather than something common in most steel tanks with a bit of moisture and air. • Ask: when entering confined spaces, are we more often warned about low oxygen or about routine coatings suddenly becoming poisonous just from moisture?

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Study

Question 1 of 205eccef9ebacbc34ba4d46591

A tank which has been sealed for a long period of time can be dangerous because __________.

Back

Question 1 of 20

5eccef9ebacbc34ba4d46591

A tank which has been sealed for a long period of time can be dangerous because __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed