Large-scale environmental catastrophes a. result from human activities b. have a negative impact on ecosystems c. affect a variety of environmental factors d. all of the above select the best answer from the choices provided a b c d

d. all of the above

Catastrophic events are large scale disaster events that are caused due to natural calamity and human activities. Natural disasters like earthquakes, volcanic eruptions, flood, drought conditions. But large scale environmental catastrophes are human induced disasters include deforestation, forest fires, bomb explosion, nuclear explosion. All these catastrophic events have a negative effect on the ecosystem as they disturbs biotic community living in the ecosystem causes death of plant, animal and human species. It also affects a variety of environmental factors such nuclear explosion causes air pollution, deforestation affects water cycle of nature and further causes conditions of drought.

d. all of the above

Catastrophic events are large scale disaster events that are caused due to natural calamity and human activities. Natural disasters like earthquakes, volcanic eruptions, flood, drought conditions. But large scale environmental catastrophes are human induced disasters include deforestation, forest fires, bomb explosion, nuclear explosion. All these catastrophic events have a negative effect on the ecosystem as they disturbs biotic community living in the ecosystem causes death of plant, animal and human species. It also affects a variety of environmental factors such nuclear explosion causes air pollution, deforestation affects water cycle of nature and further causes conditions of drought.

47

explanation:

ok

d

explanation: