WorksheetsBiogeochemical Cycles K-6th Hour
Total questions: 15
Worksheet time: 8mins
How many years does it take carbon to make a round trip through the geological carbon cycle?
2 years
Hundreds of years
40 years
Millions of years
Carbon is the __________ most abundant element in the universe.
Fourth
First
Twentieth
Tenth
What is pushed upward and exposed when geologic plates shift?
Limestone becomes exposed to weathering and erosion
Lava is exposed to weathering and erosion
Fossil fuels become exposed to weathering and erosion
Tectonic plates become exposed to weathering and erosion
Which organisms are responsible for fixing nitrogen?
Bacteria
Plants
Beetles
Barney Fife
What 2 things do humans combine to make fertilizer?
Nitrogen, Hydrogen
Carbon, Oxygen
Nitrogen, Carbon
Nitrogen, Oxygen
What things would not be able to function if bacteria didn't fix the nitrogen?
Plants
Herbivores
Omnivores
Sun
The largest reservoir of phosphorous occurs in __________.
The atmosphere
Sedimentary Rocks
Volcanoes
Clouds
A massive rain storm washed all the phosphorous away in the ecosystem. Plants are struggling to survive. What is most likely causing them to struggle?
They are dehydrated
They are being over eaten
The aren't able to produce DNA
They are starving
What causes phosphorous to move upward?
Evaporation
Precipitation
Geologic plate movement
Underground rivers
If all of the water that goes through the water cycle each year were placed into 2-liter bottles, how many would be filled?
700,000,000,000,000,000,000
7,000,000,000,000,000,000
3
None, it takes it away
What's the difference between transpiration and evaporation?
Nothing
One starts with a 'T' and the other with an 'E'
Evaporation occurs directly from water and transpiration comes from plants
Evaporation comes from plants and transpiration comes directly from water
Why is the ocean salty?
It has no chill
The water evaporates and the salt stays
The salt evaporates and the water stays
Water is naturally salty
What is the biological carbon cycle?
The biological flow of air
The flow of water
The logical flow of carbon through non-living things
The flow of carbon through living things
What would happen if plants did not have access to carbon?
The plants would thrive
They would start burning fossil fuels
It would be hard for them to photosynthesize
All of the above
What is cellular respiration?
When baby plants are made
The process by which cells in plants and animals break down sugar and turn it into energy
When carbohydrates are created
None of the above
