Show:
Water Cycle
Oxygen Cycle
Carbon Cycle
Nitrogen Cycle
resources
100
when water falls from the sky down to the Earth is called ________.
Precipitation
100
plants releases oxygen and makes ______________.
glucose
100
Carbon cycles through living and nonliving things is called _______________.
Carbon cycle
100
Why do living things need nitrogen?
to build protein and nucleic acid
100
why do people need resources?
to live
200
When water moves down to the soil is called ________________.
Percolation
200
Identify the two organisms that are involved in the oxygen exchange.
Plants and animals
200
How does a plant obtain carbon?
get from the air
200
Describe how animals release nitrogen?
decaying or excrete waste
200
Identify the relationship between wealth and resources
more wealth, more resources
300
when water is stored underground is called ____________.
Ground Water
300
What is the plant's role in the oxygen cycle?
to take in carbon and releases oxygen
300
Describe how animals obtain carbon?
eating other plants and animals
300
what is the main source of fixed nitrogen?
fertilizer
300
why must land be managed well?
to ensure long-life on Earth
400
when water stored underground moves into a larger body of water is called _________________.
Runoff
400
What is the animal's role in the oxygen cycle?
animals take in oxygen then releases oxygen to the plants
400
Describe how animals release carbon?
by breathing out
400
Identify the three products of nitrogen fixing.
ammonia nitrate nitrite
400
identify two environmental problems surrounding the use of our land?
too many grazing animals and deforestation.
500
the process of water moving out of plants is called __________________.
Transpiration
500
What are good ways to reduce deforestation?
Recycling
500
Describe how fossil fuels obtain carbon?
Decomposing of plants and animals
500
what is the negative impact of fertilizers and please explain your answer?
creates runoffs and dead ocean zones, because the water is contaminated with nitrogen and runoffs to the ocean.
500
identify three reason why people lack resources?
answer will vary