How Does Nature Reuse Materials?
Quiz
Name the material(s) plants take in from the environment.
- water
- nutrients
- gases
- All of the above
What materials do animals get from the environment?
- water and food
- water and carbon dioxide
- food and carbon dioxide
- food and grass
While all of the below statements are true, which one best describes the nitrogen cycle completely?
- Most nitrogen gas is fixed by bacteria in the soil or in nodules on some plant roots.
- Animals get nitrogen by eating plans and other animals.Nitrogen
- NItrogen gas is fixed, or changed, into forms of nitrogen that plants can use. These forms are nitrates and ammonia.
- Animal wastes and decaying plants and animals return nitrates and ammonia to the soil.
What are two forms of fixed nitrogen?
- nitrates and ammonia
- nitrates and nitrogen gas
- ammonia and oxygen
- nitrates and carbon dioxide
In the carbon dioxide cycle, carbon and oxygen move along plants, animals and the environment. Where is carbon most abundant on Earth?
- Dead and decaying matter
- Fossil fuels
- Oceans
- Living animals and plants
How does carbon dioxide move from organisms back to the atmosphere? (Name the process)
- Transpiration
- Evaporation
- Photosynthesis
- Respiration
What is happening to the size of the forests every year?
- People replant trees every year. This means the forests are increasing in size.
- People replant trees every year, but others cut down trees for many reasons. This means the forests are staying about the same in size.
- People replant trees every year, but overall the forests are shrinking.
- None of the above.
The sun heats the Earth, causing surface water to _______ and become________ which rises into the atmosphere.
- evaporate, clouds
- evaporate, water vapor
- transpire, water vapor
- transpire, clouds
Cold temperatures cause the water vapor to ________ and form________.
- condense, puddles
- precipitate, puddles
- precipitate, clouds
- condense, clouds
Water then falls to the Earth as ________.
- Evaporation
- Condensation
- Precipitation
- None of the above.