Nutrient Cycles Exam Questions And
Answers Already Graded A+
Long term affects of the absence of all nitrogen fixating organism. - ✔️✔️Fertilizers
would essentially be ineffective because, in order to continue the cycle, these nitrogen
fixating organisms are needed at various steps. All plant life could potentially be killed
off and therefore disrupting food chains and webs
The Phosphorus Cycle - ✔️✔️-Fairly slow
Phosphorus circulates through water, the earth's crust and living organisms.
Very little phosphorus circulates in the earth's atmosphere.
Phosphorus is typically found in rock (crust of earth ) and in ocean sediments.
Phosphorus can sometimes get trapped in the sediment of the ocean floor for millions of
years. Phosphorus can be a one way flow on human time scale.
What is Phosphorus the limiting factor of? - ✔️✔️Phosphorus can often can be a
limiting factor in soil and therefore producers (plants)
Effects of human activities on the Phosphorus cycle. - ✔️✔️We mine large quantities of
phosphate rock to make commercial inorganic fertilizers. We reduce the available
phosphate in tropical soils when we clear cut. We disrupt aquatic systems with
phosphates from runoff of animal wastes and inorganic fertilizers.
The Water Cycle (Role of water for living organisms) - ✔️✔️Without water the other
nutrient cycles couldn't exist. The availability of water is among the major factors that
determine what kind of organisms can live in a given location (terrestrial ecosystems)
(Aquatic ecosystems) water is the material that surrounds and contains organisms.
The Steps in the Water Cycle 1-4 - ✔️✔️1. Collects, purifies, and distributes the earth's
fixed supply of water.
2. Evaporation - conversion of water into water vapor.
3. Transpiration - evaporation from leaves of water extracted from soil by roots and
transported throughout the plant
4. Condensation - conversion of water vapor into droplets of liquid water.
The Steps in the Water Cycle 5-8 - ✔️✔️5. Precipitation - rain, sleet, hail, and snow.
6. Infiltration - movement of water into soil
7. Percolation - downward flow of water through soil and permeable rock formation to
groundwater storage areas called aquifers.
8. Run off - down slope surface movement back to the sea to resume the cycle. The
water cycle is powered by energy from the sun and by gravity.
Answers Already Graded A+
Long term affects of the absence of all nitrogen fixating organism. - ✔️✔️Fertilizers
would essentially be ineffective because, in order to continue the cycle, these nitrogen
fixating organisms are needed at various steps. All plant life could potentially be killed
off and therefore disrupting food chains and webs
The Phosphorus Cycle - ✔️✔️-Fairly slow
Phosphorus circulates through water, the earth's crust and living organisms.
Very little phosphorus circulates in the earth's atmosphere.
Phosphorus is typically found in rock (crust of earth ) and in ocean sediments.
Phosphorus can sometimes get trapped in the sediment of the ocean floor for millions of
years. Phosphorus can be a one way flow on human time scale.
What is Phosphorus the limiting factor of? - ✔️✔️Phosphorus can often can be a
limiting factor in soil and therefore producers (plants)
Effects of human activities on the Phosphorus cycle. - ✔️✔️We mine large quantities of
phosphate rock to make commercial inorganic fertilizers. We reduce the available
phosphate in tropical soils when we clear cut. We disrupt aquatic systems with
phosphates from runoff of animal wastes and inorganic fertilizers.
The Water Cycle (Role of water for living organisms) - ✔️✔️Without water the other
nutrient cycles couldn't exist. The availability of water is among the major factors that
determine what kind of organisms can live in a given location (terrestrial ecosystems)
(Aquatic ecosystems) water is the material that surrounds and contains organisms.
The Steps in the Water Cycle 1-4 - ✔️✔️1. Collects, purifies, and distributes the earth's
fixed supply of water.
2. Evaporation - conversion of water into water vapor.
3. Transpiration - evaporation from leaves of water extracted from soil by roots and
transported throughout the plant
4. Condensation - conversion of water vapor into droplets of liquid water.
The Steps in the Water Cycle 5-8 - ✔️✔️5. Precipitation - rain, sleet, hail, and snow.
6. Infiltration - movement of water into soil
7. Percolation - downward flow of water through soil and permeable rock formation to
groundwater storage areas called aquifers.
8. Run off - down slope surface movement back to the sea to resume the cycle. The
water cycle is powered by energy from the sun and by gravity.
