Almost all of the world's human inhabitants are living on ________ of Earth's total land surface
A. 85%
B. 50%
C. 25%
D. 10%
Ans: D. 10%
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From this cross section of the Grand Canyon, the youngest rock or structure of the ones listed below is
A) Late Cenozoic basalts.
B) Mesozoic sedimentary rocks.
C) Precambrian sedimentary and igneous rocks.
D) Precambrian metamorphic rocks and granite.
E) Hurricane fault and faults along the Grand Wash Cliffs.
Cnidarians exhibit bilateral symmetry, an advancement from the phylum Porifera. Indicate whether the statement is true or false
A distinguishing feature of ecological economics is the concept of ________
A) the only healthy economy is one that is growing B) environmental damage and also environmental benefits are external C) greenwashing to increase public acceptance of products D) steady-state economies that, like natural systems, neither grow nor shrink E) cost-benefit analysis
Submarine canyons are associated with ________.
A. turbidity currents and volcanic eruptions B. river systems C. turbidity currents D. river systems and turbidity currents E. volcanic eruptions