1. An element in soil will be considered
as a trace element if its concentration is
More MCQs on Environmental Issues
(A) 1 – 2 wt %
(B) < 0.1 wt %
(C) > 2 wt %
(D) < 1 wt %
2. Which of the following is correct
about attribute data in Geographic Information System?
(A) Attributes are pieces of data that
are connected or related to the points, lines or polygons mapped in the GIS.
(B) Attribute data can be analysed to
determine patterns of importance.
(C) Attribute data is entered directly
into a database where it is associated with element data.
(D) All of the above
3. Which one of the following chemical
species of mercury is highly toxic to living system?
(A) Mercurous ion
(B) Mercuric ion
(C) Organo mercurials
(D) Atomic mercury
4. Natural gas is composed primarily of
(A) Methane
(B) n-butane
(C) n-octane
(D) A mixture of n-octane and n-butane
5. Which of the following is true
regarding the Leopold interaction matrix used in Environmental Impact
Assessment Process?
(A) It can be expanded.
(B) It can be contracted.
(C) It can be contracted and expanded.
(D) It cannot be contracted and expanded.
6. Which of the following can be
considered in Environmental Risk Assessment?
(A) Exposure period
(B) Potency of a toxic material
(C) Quality of models
(D) All of the above
7. In India
(A) 5
(B) 10
(C) 30
(D) 2
8. The widely used aerobic suspension
type of liquid waste treatment system is
(A) Rotating Biological Contactor (RBC)
(B) Percolating filter
(C) Activated sludge process
(D) Septic tank
9. The treatment designed to remove
nonbiodegradable organic pollutants and mineral nutrients from waste water is
(A) Lagoons
(B) Imhoff tank
(C) Secondary treatment
(D) Tertiary treatment
10. Ultraviolet radiations are lethal due
to inactivation of
(A) Proteins, nucleic acids and pigments
(B) Minerals, water and air
(C) Carbohydrates, fats and vitamins
(D) O2, CO2 and water
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