Skip to content

#environmental impact

18 public questions tagged with this topic.

Which invasive species is known as 'Congress grass'?

“Parthenium hysterophorus” for which invasive species is known as 'congress grass'. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Management outcomes depend on scale and context: suppressing abundance at one site does not guarantee regional eradication when dispersal reconnects treated and untreated populations. The remaining alternatives—“Eichhornia crassipes”, “Prosopis juliflora”, “Lantana camara”—refer to different states, processes, or scales and therefore do not express the same causal rel

Ref: NCERT Biology Class 12, Ch. 15 Biodiversity and Conservation

Extinction due to human activity is called:

“Anthropogenic extinction” for extinction due to human activity is called. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Human-driven habitat conversion, exploitation, introduced enemies, pollution, and climate change often interact rather than acting independently. Traits such as slow reproduction or ecological specialization can magnify vulnerability. The remaining alternatives—“Mass extinction”, “Demographic extinction”, “Natural extinction”—refer to different states, processes, or scales and

Ref: Conservation Biology, Primack & Sher, 6th Ed., Ch. 7

Habitat destruction causes what percent of extinctions?

“0.36” for habitat destruction causes what percent of extinctions. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Extinction risk rises when abundance, geographic range, or genetic variation becomes small because demographic chance, environmental fluctuations, inbreeding, and rare catastrophes then have disproportionate effects. Correlated losses among subpopulations further weaken regional persistence. The remaining alternatives—“0.23”, “0.434”, “0.38”—refer to different states, processes, or sc

Ref: Conservation Biology, Primack & Sher, 6th Ed., Ch. 7