Biosphere
What will be an ideal response?
The sum of all ecosystems.
Environmental & Atmospheric Sciences
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Which of these high-quality energy sources drives the majority of chemical cycling that takes place in natural ecosystems?
A. solar B. geothermal C. nuclear D. fossil fuels
Environmental & Atmospheric Sciences
This works primarily on shorter-wavelength radiation:
A) Rayleigh scattering. B) Mie scattering. C) nonselective scattering. D) infrared absorption.
Environmental & Atmospheric Sciences
The interacting populations of living plants and animals in a particular location are described as a(n)
A) metapopulation. B) ecosystem. C) community. D) niche.
Environmental & Atmospheric Sciences
Scientists currently have documented the existence of more than ________ dead zones worldwide
A) 100 B) 200 C) 300 D) 400 E) 500
Environmental & Atmospheric Sciences