Environmental Science MCQs

✅ The correct answer is option C.
Malaria is caused by single-celled protozoan parasites of the genus Plasmodium. Four species infect humans by entering the bloodstream: Plasmodium falciparum, which is the main cause of severe clinical malaria and death; Plasmodium vivax; Plasmodium ovale; and Plasmodium malariae.

✅ The correct answer is option B.
When both partners/components are affected negatively, the nature of the interaction is competition. Competition is an interaction between organisms or species in which the fitness of one is lowered by the presence of another.

✅ The correct answer is option D.
The permanent wilting point is considered as the lower limit of plant-available soil water and depends upon both plant and soil characteristics. The quantity of water held by the soil between the field capacity and permanent wilting point is considered as the plant-available water.

✅ The correct answer is option B.
The intensity of earthquake is measured in Richter scale.

✅ The correct answer is option D.
Syncline is least likely to contain an oil trap.

✅ The correct answer is option D.
All are physical pollutants except soot.

✅ The correct answer is option C.
Algal bloom results in eutrophication.

✅ The correct answer is option C.
Lotic refers to flowing water, from the Latin lotus, past participle of lavere, to wash. Lotic ecosystems can be contrasted with lentic ecosystems, which involve relatively still terrestrial waters such as lakes and ponds. Together, these two fields form the more general study area of freshwater or aquatic ecology.

✅ The correct answer is option B.
The most endangered ecosystem in India is evergreen forest ecosystem.

✅ The correct answer is option C.
Meteorology is the scientific study of the atmosphere that focuses on weather processes and forecasting. Meteorological phenomena are observable weather events which illuminate and are explained by the science of meteorology. Those events are bound by the variables that exist in Earth’s atmosphere.