Ecology Review Sheet
Use the word bank below to fill-in the blanks from the passage. One word used more than once.
|Word Bank: Carbon Runoff Nitrogen Global Warming Oceans Decomposers Photosynthesis Nitrification Hydrosphere Reservoirs Greenhouse Effect Bacteria Ammonia Nitrogen Air Soil Days Respiration Years Burn fossil fuels|
The Nitrogen, Carbon, and Water Cycles
All living things use_____ to survive. ______________ gas travels from the ______ to the _________. _________________ turn nitrogen gas into _________________. _________________ is the process that transforms nitrites into nitrates (nitrites = 2 oxygen atoms & nitrates = 3 oxygen atoms). Special bacteria called ______________________ release nitrogen back into the nitrogen cycle and transform nitrates into nitrogen. ____________________is an element found in every living thing on earth. When animals and humans breathe in oxygen and breathe out carbon dioxide it’s called _______________. ______________________ is when plants use energy from the sun to turn water and carbon dioxide into food. When we ________ ___________ ____________ the carbon inside is released into the atmosphere. The excess carbon that is released into the atmosphere adds to the ___________________ _________________ and ______________ _____________. The sum of all water on Earth and in its atmosphere is called the _____________________. Oceans, the atmosphere, and groundwater are all ___________________ in the water cycle. ________________ occurs when rainwater contributes to the flow of rivers and streams. This reservoir in the water cycle contains the most water: _______________. Molecules of groundwater can stay in the ground anywhere from ______ to ______________.