Answer:
Poaching is the illegal capture or killing of wild animals
Habitat destruction or loss results in the complete loss of an organism's home.
Energy cycle or trophic levels in ecosystem can cause some organisms to use up resources required by other organisms
Pollution is the release of harmful substances into the environment.
Explanation:
Poaching which involves hunting or capture of animals is illegal in most countries and is usually associated with the land use laws of the country.
Habitat destruction is when an organism loses its habitat or it becomes almost impossible for it to survive there
Energy cycle or trophic levels show energy transfer on different levels of the food chain, showing how each subsequent chain faces less and less food availability as it is used up by the one before
Pollution is characterized by introduction or presence of contaminants that have harmful effects in the environment. They can be chemical substances or such things as noise, light etc