Environmental Biotechnology — Part 1 MCQs with Explanations

Chlorofluro carbon (CFC) is the correct answer to “Ozone depletion is caused by the increase in the level of”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

All the above is the correct answer to “Which of the following is a beneficial activity of microorganisms”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

COD is the correct answer to “Which of the following parameters indicates the organic pollution of a water sample”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Ion exchange is the correct answer to “The chemical system for removal of the ions of level of salt is called”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Troposphere is the correct answer to “The atmosphere is divided in four layers. The layer in contact with the surface of earth called”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Inner core is the correct answer to “Which of the following layers of earth have the composition of peridotite”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Lacey's equation is the correct answer to “The flow in natural streams is almost always turbulent and may be assumed to be incompressible, consequently the applicable equations of motion for the fluid are the”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Glycoproteins is the correct answer to “The antifreeze molecules that prevent intracellular ice formation in marine organisms are generally”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Water purification is the correct answer to “Chlorination is process of”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Oceanic regions that are extremely hypoxic due to substantial eutrophication is the correct answer to “Dead zones in oceans refers to”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Cellulose digesting bacteria is the correct answer to “Ruminants are able to digest grass or straw. It is due to the activity of certain bacteria. What are these”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Channel flow is the correct answer to “Suspended sediment load is that part of the sediment load which is transported within the main body flow. The primary mechanism of maintaining the sediment particles in suspension is”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Jatropha sp. is the correct answer to “Biodiesel produced in India presently from”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Incineration is the correct answer to “One of the following methods for disposal of municipal solid waste known to be scientific is”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Plateau is the correct answer to “A landscape which shows a pattern of denaturation n limestone and dolomitic rock is known as”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Reverse osmosis is the correct answer to “Which of the following water purification technology removes minerals from drinking water”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Barophiles is the correct answer to “Omp-H protein is synthesized in”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Red is the correct answer to “Industries generating hazardous waste are classified as”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Lung cancer is the correct answer to “Asbestos use is banned in many countries. It is known to cause”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Standard plate count is the correct answer to “. . . . . . . . test is designated to enumerate total viable population”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

N2 is the correct answer to “Which of the following affects the ozone concentration in troposphere”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

99% is the correct answer to “After sedimentation, the water is next passed through sand filter beads, a process which removes . . . . . . . . bacteria.”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Thiobacillus ferrooxidans is the correct answer to “A bacterium useful in bioleaching of metals from low grade ores is”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

60 -70% is the correct answer to “The combination of primary and secondary treatment reduces the original sewage BOD by”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Electroplating is the correct answer to “Which of the following industries do not produce hazardous waste”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Invasive marine species is the correct answer to “Ballast water may be carried on-board by ships to maintain stability and improve manoeuvrability during transit. Introduction of which one of the following is regarded as the major threat in release of untreated ballast water”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

All the above is the correct answer to “The enteroviruses are the ones most commonly found in sewage, they include”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Aluminium foil is the correct answer to “Which one of the following is not biodegradable”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

White pine, Moss and Lichens is the correct answer to “Plants suitable for bio monitoring of SO 2 pollution are”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Scattering is the correct answer to “In colloidal chemical substance, the light undergoes”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

EIS (Environmental Impact Statement) is the correct answer to “Four stages viz Initiation, inventory analysis, impact, assessment and improvement assessment are associated with”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Impacts of agro-chemicals on ecological functions is the correct answer to “Richael Carsson in her book Silent Spring has classified as raised concern on”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Sewage is the correct answer to “Biodegradable pollutant is”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

13 is the correct answer to “How many sites as potential areas for biosphere reserves have been identified by the national MAB committee for the department of environment”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Approx 0.8°C is the correct answer to “According to IPCC, during the 20 th century Earth's mean surface temperature has risen by”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Due to both increased pressure and density inside the bottle, the bottle shrinks in size is the correct answer to “When a bottle of fully packed water in plastic bottle is fully frozen, then while opening”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Allogenic is the correct answer to “Sedimentary component which is produced in situ within the pore space is called”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Western Ghats is the correct answer to “Chemical weathering of rock material is most effective in which of the following region”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Sludge treatment is the correct answer to “Which waste water treatment is an anaerobic process”. This question is standard in competitive examination syllabi for Environmental Biotechnology.

Promote economic growth to support increasing human population with adequate environment care is the correct answer to “AGENDA - 21 specifically advocated to devise strategies to”. This question is standard in competitive examination syllabi for Environmental Biotechnology.