9
Question
Which of the following is true regarding background extinction?
Which of the following is true regarding background extinction?
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Solution
The correct options are
B Plant conservation
C Animal breeding
Background extinction refers to the standard rate of extinction in Earth's geological and biological history before humans became a primary contributor to extinctions. Background extinctions happen due to natural and ecological factors. On the other hand, mass extinction is a widespread event that wipes out a majority of living plants and animals. A mass extinction is a relatively sudden (like glaciation) process, leading to a global decrease in the diversity of life forms. Five mass extinctions have occurred before humans evolved and they were due to natural disasters. Species went extinct even before humans evolved on Earth. However, human activity has amplified the background extinction rate tremendously.
B
Plant conservation
C
Animal breeding
Background extinction refers to the standard rate of extinction in Earth's geological and biological history before humans became a primary contributor to extinctions. Background extinctions happen due to natural and ecological factors. On the other hand, mass extinction is a widespread event that wipes out a majority of living plants and animals. A mass extinction is a relatively sudden (like glaciation) process, leading to a global decrease in the diversity of life forms. Five mass extinctions have occurred before humans evolved and they were due to natural disasters. Species went extinct even before humans evolved on Earth. However, human activity has amplified the background extinction rate tremendously.
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