Answer:
Step-by-step explanation:
Zoos with endangered species are not a threat to biodiversity.
The biodiversity of ecosystems would very obviously be effected by carbon emissions as these would cause health problems for the organisms in an ecosystem. Human expansion means that more and more trees would be cut which means they have lesser space to live in now.
Hunting and poaching refers to killing of the animals in an ecosystem which means if this is implemented, it will most surely become a threat to the biodiversity of an ecosystem.