Cycles in Ecosystems

Match it! Select the correct answer from the pull down...Good luck!

Organisms called ___________________ release carbon dioxide when they break down dead organisms.

I am the changing of a liquid into a gas. What am I?

I am the continuous exchange of carbon among living things. What am I?

I am the changing of a gas into a liquid as the gas cools. What am I?

Water condenses in the atmosphere and falls, as _____________ into oceans and the ground, or over land as ____________.

I fall on Earth’s surface as rain, snow, sleet, or hail. What am I?

Carbon dioxide is released back into the _________________ when living things use it as food.

I am a mixture of decayed plant and animal material that can be used as fertilizer. What am I?