Human demands and pressures have surpassed Earth's ability to regenerate resources. Indicate whether the statement is true or false
ANS: T
This has been true since at least the early 1980s. Our demand exceeds Earth's replacement capacity by
20 percent. Information can be found in the section An Introduction to Marine Environmental Issues.
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In the late 1800's various principles (original horizontality, inclusions, cross cutting relations, etc.) were established and used to ________ . (read carefully)
A) organize the order in which events occurred on earth B) prove that evolution was a valid theory that could explain many geologic observations C) determine the age of the earth D) determine the age of events on the earth
The red color in red rocks usually indicates the presence of ____
a. magnesium
b. carbon
c. silica
d. fossilized blood
e. iron
The voltage supplied to a battery doing 24 J of work on 10 C of charge is
A. 2.4 V. B. 4.2 V. C. 240 V. D. 24 V.
DDT was widely used and remains in use today in some countries to fight malaria by
A) killing the parasite that causes malaria. B) fouling the water used by mosquitoes for reproduction. C) killing the virus that causes malaria. D) killing mosquitoes that are the major malarial vector.