The correct answer is (c), destruction of habitat. Habitat destruction is the primary cause of biodiversity loss. It is the clearing of forests, wetlands, and other natural areas to make way for agriculture, development, and other human activities. Habitat destruction can lead to the extinction of species, as well as the decline of populations of many other species.
Genetic assimilation is the process by which a population of organisms loses genetic diversity. This can happen through natural selection, when certain genes are more likely to be passed on to the next generation than others. It can also happen through human activities, such as habitat destruction and pollution. Genetic assimilation can make a population more vulnerable to extinction, as it reduces the population’s ability to adapt to changes in its environment.
Controlling predators is a controversial issue. Some people believe that it is necessary to control predators in order to protect livestock and other valuable resources. Others believe that controlling predators can have negative consequences for the environment, as it can lead to the decline of prey populations.
Controlling pests is also a controversial issue. Some people believe that it is necessary to control pests in order to protect crops and other valuable resources. Others believe that controlling pests can have negative consequences for the environment, as it can lead to the decline of beneficial insect populations.
In conclusion, the most important factor responsible for decline of bio-diversity is destruction of habitat.