The National Ecosystem Observance Network (NEON) is a long-term study of ecosystems to help us understand the effects of
A) nutrient cycling in eroded soils.
B) climate change and invasive species.
C) primary succession on volcanic islands.
D) efficiency of energy transfer between producers and consumers.
B
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Which nutrient is most directly responsible for efficient water uptake and conservation?
A) Nitrogen B) Potassium C) Phosphorus D) Titanium
Which of the following best matches the description?Process of breaking up large particles by physical forces.
A. soil profile B. horizon C. asthenosphere D. soil texture E. mechanical weathering F. parent material G. weathering H. loam I. leaching J. friable K. windbreak L. humus M. contour farming N. soil structure O. chemical weathering P. terrace Q. lithosphere
Orbital eccentricity refers to ____
A)the need to add a "leap day" every four years B)variation in the timing of Earth's equinoxes C)how much Earth is tilted on it's axis D)how close Earth is to the Sun E)how circular or elliptical Earth's orbit is
Using satellites to measure water vapor in the atmosphere
A) gives excellent data about the heat radiating properties of clouds. B) only works when precipitation events occur. C) only provides data for the bottom 500-1000 meters of the troposphere. D) all of the above E) none of the above