Dear student,
Apart from human activities like deforestation, habitat degradation, fragmentation are aspects of habitat destruction caused by humans that do not necessarily involve over destruction of habitat, yet leads to habitat collapse.
Degradation of habitat is when it is invaded by non-native species or is being polluted, leading to its deterioration.
Fragmentation is when the habitat is broken up into pieces or fragments due to human activities like construction of dams, roads, etc.
Habitat destruction through natural processes such as volcanism, fire, climate change and any other kind of natural calamity also leads to habitat destruction.
Regards.