The hardest mineral has a hardness of ________ on Mohs' relative hardness scale.
A. 1
B. 10
C. 100
D. 1000
E. 10000
Answer: B
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In Australia, the existence of unique species like kangaroos is due to the movement of tectonic plates over geologic time.
Answer the following statement true (T) or false (F)
Which of the following best matches the description?Process of replanting an area after the original trees are removed.
A. clear-cutting B. cover C. selective harvesting D. reforestation E. threatened species F. speciation G. patchwork clear-cutting H. mutation I. biodiversity J. species diversity K. endangered species L. extinction M. habitat management
Relative to the five fundamental themes of geography, the Cienega de Santa Clara, an ecotourism destination on the Colorado River delta, is best described within which of the five themes?
A) location B) place C) human-Earth relationships D) movement E) regions
The density of seawater is controlled by temperature and salinity
Indicate whether the statement is true or false