contain oxygen

Examples (10)

• Water contains oxygen and hydrogen in a two-to-one ratio.
• The Earth's atmosphere contains approximately 21% oxygen.
• Scientific tests suggest that rocks on Mars may contain trapped oxygen.
• Does this specific gas cylinder contain pure oxygen for medical use?
• Blood containing oxygen is pumped from the lungs to the rest of the body.
• The laboratory researchers found that the deep-sea sample contained no oxygen.
• Most minerals found in the Earth's crust contain oxygen atoms.
• It is vital for the ecosystem that the water contains sufficient oxygen for fish.
• The storage tank used to contain liquid oxygen but it is currently empty.
• New technologies are being developed to extract gases from soil containing oxygen.