Question

state the main causes which are a threat to the ecosystem

Answer 1

1)burning of fossil fuels
2)deforestation
3)hunting of animals,poaching,etc
4)wastage of water

Answer 2

the main causes which are a threat to the ecosystem are -

1. deforestation - the cutting down of tress for human settlements are a big threat to ecosystem.
2. hunting - this is resulting in endangerment of rare species.
3. climate change -  the rise of global temperature, the el-nino effect i.e. change in climatic pattern, melting of polar ice caps and increasing pollution are some alarming causes.