Biology
Grade-10
Easy
Question
Very fast decline of a population due to very high mortality rate is known as:
- Population density
- Population crash
- Population explosion
- Population density
Hint:
Population decline in humans is a reduction in human population size. Over the long term, stretching from prehistory to the present, Earth's total human population has continued to grow; however, current projections suggest that this long-term trend of steady population growth may be coming to an end.
The correct answer is: Population crash
- The causes of a population crash are somewhat varied but include scarcity of environmental resources that are needed for survival, growth, reproduction, predation, and waste accumulation.
- It can also be caused by an initially overpopulated group and competition between members of the same species.
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