Chapter 7 KSSM Form 1

What is the percentage composition of nitrogen in air?

• 78%

• 75%

• 86%

Plants use ________________ for photosynthesis.

• Chlorine

• Nitrogen

• Carbon dioxide

_______________ is one of the most abundantly found gases on earth.

• Oxygen

• Carbon dioxide

• Nitrogen

______________ is a combustible gas.

• Nitrogen

• Oxygen

• Argon

Which gas makes up approximately 21% of the atmopshere?

• Oxygen

• Carbon Dioxide

• Argon

Which gas makes up approximately 1% of the atmosphere?

• Carbon Dioxide

• Methane

• Argon

Combustion is another word for _______________.

• a train
• a bus
• a dog
• burning

Tags

CCSS.RI.6.4

CCSS.RI.7.4

CCSS.RI.8.4

CCSS.RL.6.4

CCSS.RL.7.4

What does not produce carbon dioxide?

• Photosynthesis
• Burning Fossil Fuels
• Animal respiration
• Plants decaying

Tags

NGSS.MS-LS1-6

How do living organisms return carbon to the atmosphere in the carbon cycle?

• respiration and photosynthesis
•  decomposition and respiration

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

A gas produced by animals during respiration that plants use for photosynthesis.

• Oxygen
• Carbon Dioxide
• Photosynthesis
• Radiation

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3