Biogeochemical Cycles

How does carbon in a grass plant get into a lion?

• The lion eats the grass
• Carbon from grass doesn't end up in a lion. 
• The carbon ends up in the food the lion eats. 
• The lion breathes in carbon given out by the plant

Photosynthesis

• absorbs CO₂
• releases CO₂

Which of the following absorb carbon dioxide from the atmosphere?

• Plants

• The ocean

• Sedimentary rocks

• all of these

What 2 things does a plant make during photosynthesis?

• oxygen, glucose
• glucose, carbon dioxide
• useable energy, glucose
• oxygen, carbon dioxide

Which one of these does not add CO₂ to the atmosphere?

• cooking with gas

• planting trees

• burning wood

• riding in a bus

A _______________ is any process or activity through which an element is released into the atmosphere.

• Sink

• Source

• Bucket

• Location

A ____________ is a reservoir that takes up a chemical element and stores it for a long period of time.

• Sink

• Source

• Bucket

• Location

What is a greenhouse gas?

• A gas that helps plants grow

• Any gas in the atmosphere

• A gas that absorbs solar radiation allowing the Earth to stay at a livable temperature

• A gas that can only be harmful and poisonous

How is the ocean involved in the carbon cycle?

• Aquatic plants absorb CO₂ to perform photosynthesis

• The surface of the ocean absorbs and dissolves CO₂

• Certain aquatic plants take in carbon to make their shells

• The ocean releases carbon that was stored in the remains of dead organisms

• All of the options are correct

What types of organisms need carbon to survive?

• Insects

• Plants

• Mamals

• All types of organisms