OBJECTIVE FORESTRY

Detailed explanation-1: -An invasive species is an organism that is not indigenous, or native, to a particular area. Invasive species can cause great economic and environmental harm to the new area.

Detailed explanation-2: -Plants that do not occur naturally in a region but proliferate in the area they have been introduced into, and cause several negative impacts (such as affecting native biodiversity, causing economic losses and harming human health) in these new habitats, are called invasive plants.

Detailed explanation-3: -Solution: Doob grass or Cynodon is not an invasive species. Carrot grass, water hyacinth and Lantana are invasive species that pose threat to indigenous species from Indian context.