The total ecological footprint for humanity is expected to be
a. twice the planet's ecological capacity by the year 2015
b. 30% higher than the planet's ecological capacity by the year 2035
c. 60% higher than the planet's ecological capacity by the year 2035
d. 30% higher than the planet's ecological capacity by the year 2015
e. twice the planet's ecological capacity by the year 2035
E
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In the R,S system, which of the following groups has lowest priority?
A) aldehyde B) carboxyl C) ketone D) primary alcohol
What was not an invention rendered by the Chinese to facilitate their ocean voyages?
a. Central rudder system b. Watertight compartments c. Chronometer d. Compass
Which of the following processes/situations may alter regional land elevation?
A. heating or cooling B. thrust faulting or normal faulting C. intrusions of magma D. erosion or deposition E. All of these processes/situations can alter regional land elevation.
Where is the majority of the Earth's water?
A. atmosphere B. oceans C. land