Ecosystems that are disturbed by human activities are not vulnerable to invasive species.
Answer the following statement true (T) or false (F)
False
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The largest number of migrants to France are from North Africa
Indicate whether the statement is true or false
The Charney effect refers to the relationship of _______. The effect was named after Jules Charney who documented the relationship in the early 1970s
a. fewer plants resulted in a higher albedo, thus lowering humidity and local precipitation b. fewer plants resulted in a lower albedo, thus lowering humidity and local precipitation c. dry conditions and drought actually made it easier to till and plant the soil d. dry conditions and drought actually led to more food per capita as people left the Sahel region
A green flash occurs because:
A) ice crystals diffract the green light. B) green light is scattered more during sunrise. C) green light is bent more than red and orange light. D) red and orange light is absorbed by the atmosphere.
Presently, glaciers cover less than ____________________ percent of Earth’s land surface
Fill in the blank with correct word.