Q.1
The variety of ecosystems that are present in the biosphere.
  • Biodiversity
  • Genetic diversity
  • Species diversity
  • Ecosystem diversity
Q.2
The number of different species and the relative abundance of each species in a biological community.
  • Biodiversity
  • Genetic diversity
  • Species diversity
  • Ecosystem diversity
Q.3
Increases the chances that some species will survive during changing environmental conditions or during the outbreak of disease.
  • Biodiversity
  • Genetic diversity
  • Species diversity
  • Ecosystem diversity
Q.4
Removes calcium, potassium, and othernutrients from the soil, depriving plants of these nutrients.
  • Biological Magnification
  • Acid precipitation
  • Eutrophication
  • Invasive (introduced) species
  • Pollution
Q.5
Any resource replaced by natural processes more quickly than it is consumed is a:
  • Nonrenewable Resource
  • Renewable Resource
  • Endemic Resource
  • Natural Resource
Q.6
Some scientists believe that we are in a period of mass extinction because a large percentage of all living species are being hit by comets everyday.
  • True
  • False
Q.7
There is a gradual process of extinction of species known as background extinction.
  • True
  • False
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