______ and nickel are thought to comprise significant portions of Earth's inner and outer cores.
a - aluminum
b - quartz
c - titanium
d - basalt
e - iron
e - iron
Environmental & Atmospheric Sciences
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Name one property commonly exhibited by minerals that have van der Waals bonding. What will be an ideal response?
Environmental & Atmospheric Sciences
The earth has been in a warming trend for
a. more than 100 years b. more than 500 years c. more than 1000 years
Environmental & Atmospheric Sciences
Compared to shifting cultivation, intensive subsistence agriculture is characterized by which of the following?
A) smaller farms B) lower population densities C) greater use of animal power D) more diversified cropping E) greater use of land in rainforests
Environmental & Atmospheric Sciences
What is the IUPAC name of sec-butyl mercaptan?
A) 2-butanethiol B) 2-methyl-1-propanethiol C) 2-methyl-2-propanethiol D) none of these
Environmental & Atmospheric Sciences