What characterizes the 24 hotspots identified by Norman Myers?
What will be an ideal response?
Biogeographic units (regions with a distinct and identifiable assemblage of plants and animals) containing at least 0.5% of the world's 300,000 known vascular plants. In addition, the region must have lost at least 70% or more of its primary vegetation.
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What is the main source of terrigenous sediments to the ocean?
a. volcanic eruptions b. rivers c. dust and ash d. cosmic dust e. marine snow
This graph depicting island diversity predicts that ________
A) size and distance to the mainland do not matter for island species B) large islands close to the mainland will have the most species C) large islands far away from the mainland will have the least species D) small islands close to the mainland will have the least species E) small islands close to the mainland will have the most species
The primary control of solar radiation at a place is altitude
Indicate whether the statement is true or false
How do scientists use earthquakes to determine if a volcano may erupt soon?
What will be an ideal response?