OBJECTIVE FORESTRY

Detailed explanation-1: -The main modern causes of extinction are the loss and degradation of habitat (mainly deforestation), over exploitation (hunting, overfishing), invasive species, climate change, and nitrogen pollution.

Detailed explanation-2: -Habitat loss is the primary cause of higher extinction rates. Other causes include habitat changes, over-exploitation of wildlife for commercial purposes, the introduction of harmful nonnative species, pollution, and the spread of diseases.

Detailed explanation-3: -Demographic and genetic phenomena. Destruction of wild habitats. Introduction of invasive species. Climate change. Hunting and illegal trafficking.