Environmental Science MCQ Questions and answers | EVS MCQ

The reasons are deforestation, pollution, killing, over exploitation etc. The most important among them is deforestation or destruction of their natural habitat because it will affect the species (flora and fauna) of complete area and not only the few organisms.

Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or die, thereby reducing biodiversity and species abundance.

Pneumonia is an infection of the lungs that may be caused by bacteria, viruses, or fungi. The infection causes the lungs' air sacs (alveoli) to become inflamed and fill up with fluid or pus. That can make it hard for the oxygen you breathe in to get into your bloodstream.

Biomass is essentially stored solar energy that can be converted in to electricity, fuel and heat.

This is used as an index for fuel consumption heating degree-days.

Volcanoes also give off greenhouse gases. The most abundant gas released from volcanic eruptions is water vapour. Other emitted gases include carbon dioxide (CO2), sulfur dioxide (SO2), hydrogen sulfide (H2S), carbon monoxide (CO), hydrogen chloride (HCl), and hydrogen fluoride (HF).

A detritivore is an animal feeding on decaying organic matter. It is a heterotroph that obtains nutrients by consuming detritus. Examples include millipedes, earthworms, fiddler crabs, sea cucumbers.

Hg fungicides has the problem of biomagnifications.

The bell-shaped pyramid represents pre-reproductive and reproductive individuals which are basically the young individuals.

The Gulf Coast states are more humid in summer than the coastal areas of Southern California mainly because of the higher water temperature in the Gulf of Mexico.