Biogeochemical Cycles
%
My Stats
Current Streak
/ 5
Tokens
Lifetime Tokens
Accuracy
%
User ID
Home
Quest
Answered
Saved
Hot Topics
Following
Followers
Post
Create
Promote
1
Comments
Money
Account
Please select a topic from the list.
Out of Tokens! Answer 5 in a row to earn more tokens
Space Communication
Automotive Maintenance
Cell Biology
British Armed Forces
Human Anatomy
Security Systems
Organizational Culture
Computer Storage
Medieval Architecture
Broadcasting
Materials and Construction
Urban Ecology
Environmental Issues
Global Development Goals
Exposure
Islamic Festivals
Hematology
Fossil Fuels
Medical Technology
Automotive Technology
Avant-Garde Movements
Musical Techniques
Hydrology
Electrostatics
Catholic Church
Early Football History
Ancient Near East Studies
Logistics and Supply Chain
Asteroids
Motorsport History
B
Brewster
Brewster
➕ Follow Author
📄 View Journals
>>
Followers:
7
Lifetime Tokens:
7
ENVIRONMENTAL SCIENCE
Ecology
Biogeochemical Cycles
Earth’s life depends on invisible cycles weaving through air, land, and water
3 days ago
0
How do biogeochemical cycles maintain Earth's environmental balance?
By storing all elements permanently in the Earth's crust
By continuously recycling essential elements between living organisms and the physical environment
By isolating chemical elements within specific ecosystems without exchange
B
Bonbo
Me as you
➕ Follow Author
📄 View Journals
>>
Followers:
6
Lifetime Tokens:
0
ENVIRONMENTAL SCIENCE
Biogeochemical Cycles
Nitrogen Cycle
Nitrogen's invisible tug-of-war shapes ecosystems and fuels environmental crises
14 days ago
0
What is the main reason atmospheric nitrogen (N2) is not directly usable by most organisms, necessitating the nitrogen cycle's fixation process?
Because atmospheric nitrogen is too scarce to meet biological needs.
Because nitrogen in the atmosphere is already in a form plants can absorb directly.
Because the triple bond in N2 molecules makes it chemically inert and biologically unavailable.
B
Bonbo
Me as you
➕ Follow Author
📄 View Journals
>>
Followers:
6
Lifetime Tokens:
0
EARTH SCIENCE
Biogeochemical Cycles
Carbon Cycle
Earth's carbon cycle sustains life by recycling carbon through air, water, soil, and organisms
30 Jan 2026
0
How do oceans contribute to the carbon cycle and affect atmospheric carbon dioxide levels?
Oceans absorb carbon dioxide from the atmosphere, storing it and helping regulate atmospheric CO2 levels.
Oceans release large amounts of carbon dioxide into the atmosphere, increasing CO2 levels.
Oceans have no significant role in the carbon cycle or atmospheric carbon dioxide regulation.
×
Comments
Loading....
Share comment
5
Streak Win!
Game Over