Eco: Oxygen Cycle

________________ could increase the amount of oxygen in the air.

• Building more houses

• Burning more oil

• Paving more streets

• Planting more trees

Tags

NGSS.MS-LS1-6

Which is the living organism that provides us oxygen ?

• Animals

• Plants

• Humans

Answer explanation

Plants are the only autotrophs among all the living organisms. Plants are the only organism which us oxygen.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Oxygen is used up for ..........

• Fungi

• Rusting

• Corrosion

• Respiration

Tags

NGSS.MS-LS2-1

what is the process plants follow to produce oxygen for us ?

• Photosynthesis

• Respiration

• Digestion

• Egestion/Ingestion

Tags

NGSS.MS-LS1-6

Which of the following processes uses oxygen through the matter of dead plants and animals?

• 
• decomposing

• combustion

• sunlight

• oxidation

Tags

NGSS.MS-LS2-3

The carbon dioxide-oxygen cycle is best defined as-

• the process in which plants use energy from the sun to make their own food
• a green substance in plant leaves that captures energy from the sun
• living things
• the movement of carbon dioxide and oxygen between organisms and the air

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Name the process by which an organism exchanges gases with its environment

• photosynthesis

• Respiration

• Oxygen

• Fermentation

Tags

NGSS.MS-LS1-6

Which statement about cellular respiration is true?

• Oxygen is a waste product of cellular respiration in both plants and animals.

• Oxygen is a waste product of cellular respiration in plants, but not in animals.

• Carbon dioxide is a waste product of cellular respiration in both plants and animals.

• Carbon dioxide is a waste product of cellular respiration in plants, but not in animals.

Tags

NGSS.MS-LS2-3

What are the reactants in the equation for cellular respiration?

• oxygen and lactic acid

• carbon dioxide and water

• glucose and oxygen

• water and glucose

Tags

NGSS.HS-LS1-7

Which of the following is released during cellular respiration?

• oxygen

• air

• energy

• lactic acid