A way to greatly reduce topsoil erosion is to eliminate or minimize the plowing and tilling of topsoil, leaving crop residues on the ground, using special machines in a process called ____________________.
Fill in the blank(s) with the appropriate word(s).
Right answer summary: conservation-tillage
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Species that serve as an early warning of damage to a community are called
A. indicator species. B. native species. C. keystone species. D. specialist species. E. nonnative species.
The Chernobyl disaster in 1986 was what type of environmental disaster?
A) a collapse of a poorly regulated dam B) a massive oil spill into the Volga River which flowed into the Caspian Sea C) a massive coal mine fire which continues to burn to present day D) a meltdown of a nuclear reactor which spewed airborne radioactive waste across thousands of acres of farmland E) a dumping of toxic waste into the Arctic Sea causing a massive loss of fisheries
You have been asked to review a manuscript that has been submitted for publication in a professional journal. The area of interest in this article is an amphibolite exposed along the Chippewa River at Jim Falls, Wisconsin
The researchers state that the amphibolite is believed to have been altered 2.6 billion years ago by tectonic pressures of 14 kilobars and temperatures of 190°C. Should you approve this manuscript for publication? Why or why not? What will be an ideal response?
What kind of distribution do we typically see within a population of a species that maintains nesting territories, such as red-winged blackbirds?
A) clustered B) random C) clumped D) uniform E) logarithmic