Biogeochemical Cycles
This is the process that cycles nutrients from one sphere to another throughout the Earth.
What is a Biogeochemical Cycle?
This sphere contains most of the Earth's phosphorous.
Carbon reservoirs are found in these Earth's spheres.
What is all of them or the geosphere, biosphere, atmosphere and hydrosphere?
Ammonia in the soil is an example of nitrogen in this sphere.
What is the geosphere?
These are the 4 spheres involved in the cycling of nutrients.
What are the atmosphere, hydrosphere, biosphere and geosphere?
This is an example of phosphorous in the hydrosphere.
What is phosphate dissolved in ocean water?
Carbon in the _______ sphere can be found in dissolved ocean water.
What is the hydrosphere?
Consumers like rabbits and cows assimilate nitrogen into their systems in this way.
What is eating plants?
In biogeochemical cycles _______ and ______ move or recycle through the Earth's systems.
a) Soil
b) bacteria
c) matter
d) energy
What are matter and energy?
Living things store phosphorous in this area.
a) proteins
b) carbohydrates
c) cell membranes
What are cell membranes.
Carbon dioxide is the product of ______, which is a biological process of all animals.
a) photosynthesis
b) respiration
c) evaporation
What is respiration?
Nucleic acids contain important nitrogen compounds and help form which of the following:
a) DNA and RNA
b) proteins
c) lipids
What is DNA and RNA?
This type of feedback loop works to counteract or slow down changes in a system.
What is negative feedback?
Plants take up phosphorous from the soil. This is an example of phosphorous moving between these two spheres.
What are the geosphere and the biosphere?
Humans burn this form of carbon to produce energy.
What is coal? Or will also accept gasoline or other petroleum products.
Nitrogen returns to the atmosphere through this process:
a) assimilation
b) denitrification
c) nitrogen fixing
What is denitrification?
Earth's climate is currently warming. As temperatures rise, the ice caps and sea ice melt, reflecting less solar radiation. As a result the Earth absorbs more heat and grows warmer, melting more ice. This is an example of a ______ feedback loop.
What is a positive feedback loop?
Most of the body's phosphorous is stored in this area.
What are bones and teeth.
Excess carbon in the atmosphere is absorbed and dissolved into the ocean resulting in this problem.
What is Ocean Acidification.
Bacteria convert ammonia in the soil into nitrates and nitrites for plants to use in this process:
a) assimilation
b) nitrogen uptake
c) nitrogen fixing
What is nitrogen uptake?