Carbon is passed through the food chain as ___________ and other organic molecules.

Carbon is stored in Earth's __________ (living things).

What is a reservoir?

Carbon is stored in ___________ like limestone.

Carbon is dissolved in the _____________ and found in ocean sediments.

Carbon is stored in ___________ _________ like coal, oil, and natural gas.

Carbon is released into the atmosphere through _______________.

______________ fossil fuels releases carbon into the atmosphere.

____________ _________________ releases carbon into the atmosphere.

______________ increases the amount of carbon dioxide in the atmosphere.

Rising ___________ _______________ reduce the CO₂ dissolved in the oceans and increases the CO₂ in the atmosphere.

Atmospheric carbon ______________ as carbon outputs increase and carbon reservoirs are destroyed.

_____________ is absorbed from the soil by plants and passed through the food chain as ____________ ____________ and other nitrogenous compounds.

____________-___________ _____________ convert nitrogen into forms that can be absorbed and used by plants!

______________ converts N₂ gas in the air into NH₃, then the

rain carries this nitrogen down to the soil!

_____________ can disrupt the nitrogen cycle by adding too much nitrogen to the environment.

__________ ____________ occur when runoff carries fertilizers into waterways.

In aquariums, __________ and ___________ add nitrogen to the water.

Adding __________ _____________ to an aquarium can help remove excess nitrogen from the water!

____________ ___________ disrupts the nitrogen cycle by preventing nitrogen from returning to the soil.

_______________ ____________ live in ecosystems where nitrogen is scarce, so they digest insects to get it!