Environmental Science MCQs

✅ The correct answer is option A.
Methane also is the chief constituent of natural gas, which contains from 50 to 90 percent methane (depending on the source), and occurs as a component of firedamp (flammable gas) along coal seams.

✅ The correct answer is option C.
Red sea is an example of a faulted structure.

✅ The correct answer is option B.
Towering cumulus (cumulus congestus) would refer to cloud b.

✅ The correct answer is option A.
Zinc, Chlorine, Boron, Molybdenum, Copper, Iron, Manganese, Cobalt and Nickel are called micro-nutrients. They are called so because they are found and needed by plants in very small amount relative to other nutrients and are least likely to be limiting plant growth and healthy development.

✅ The correct answer is option A.
Increased surface UV leads to increased tropospheric ozone.

✅ The correct answer is option D.
Biomass pyramids show how much biomass (the amount of living or organic matter present in an organism) is present in the organisms at each trophic level, while productivity pyramids show the procreation or turnover in biomass.

✅ The correct answer is option B.
Sustainable development is the organizing principle for meeting human development goals while simultaneously sustaining the ability of natural systems to provide the natural resources and ecosystem services based upon which the economy and society depend.

✅ The correct answer is option D.
Minamata disease, sometimes referred to as Chisso-Minamata disease, is a neurological syndrome caused by severe mercury poisoning. Symptoms include ataxia, numbness in the hands and feet, general muscle weakness, narrowing of the field of vision and damage to hearing and speech.

✅ The correct answer is option A.
In the wake of the Bhopal Tragedy, the Government of India enacted the Environment Protection Act of 1986 under Article 253 of the Constitution. Passed in March 1986, it came into force on 19 November 1986.

✅ The correct answer is option D.
A high BOD indicates the presence of a large number of microorganisms, which suggests a high level of pollution.