Biogeochemical Cycles NUMERO UNO

How many steps are there in the Geological Carbon Cycle?

• 8

• 9

• 7

• 6

How long does it take for the carbon cycle to complete a turn?

• Thousands of years

• Millions of years

• Hundreds of years

• One year

During the geological carbon cycle, carbon passes through which of the following?

• Geosphere

• Hydrosphere

• Atmosphere

• Biosphere

What is nitrogen fixation?

• Nitrogen incorporated into plant tissues

• Plants get nitrogen from nitrates

• A type of pineapple

• When nitrogen gas is converted into ammonia

Nitrogen makes up ________ percent of the air that we breathe.

• 78%

• 2%

• 56%

• 99.99%

How are nitrogen-based fertilizers made?

• Photosynthesis

• Combining nitrogen gas with hydrogen

• It's already made

• Denitrification

Which of the following is a method for carbon to leave the biosphere?

• A forest catching on fire

• Decomposition via fungi, bacteria

• A lion eating a tiger

• Cellular respiration

____________ is a process in which carbon dioxide is absorbed and converted into carbohydrates.

• Cellular respiration

• Photosynthesis

• Biosphere

• Carboniferous

What is happening when one animal is consuming another?

• A plant is creating carbohydrates

• Energy is transferred through the food chain

• Carbon dioxide

• Plants absorb carbohydrates and water

How much water resides in oceans, rivers, and lakes?

• 50%

• 10%

• 97%

• 79%