Download PDF
Free download in PDF Environmental Issues Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
The presence of _________ in a water body is an indicator of water pollution.
[A]
Zygosporangium
[B]
E.Coli
[C]
Deinococcus radiodurans
[D]
None of the above
(2)
Eggshells of birds become unusually thin when exposed to the pesticides in their environment. The protein that gets affected is ________
[A]
Calmodulin
[B]
Cysteine
[C]
Serine
[D]
None of the above
(3)
Lichens are good bioindicators for
[A]
Environmental radiation
[B]
Soil pollution
[C]
Water and air pollution
[D]
None of the above
Answer: Water and air pollution
(4)
A moth having a speckled wing, able to blend into its background due to its dark colouration is called
[A]
Industrial melanism
[B]
Adaptation
[C]
Predation
[D]
Evolution
Answer: Industrial melanism
(5)
Carbon dioxide is primarily called a greenhouse gas because
[A]
Traps heat
[B]
Traps light
[C]
Traps warm currents
[D]
None of the above
(6)
Trichoderma harzianum is a ________ that is predominantly used as a fungicide
[A]
Virus
[B]
Fungus
[C]
Bacteria
[D]
Protozoa
(7)
Greenhouse gases are those that absorb and emit infrared radiation. Examples inlude__________
[A]
Nitrogen
[B]
Ozone
[C]
Argon
[D]
None of the above
(8)
Depletion of the ozone layer is damaging to human health. Negative effects include
[A]
Skin cancers
[B]
Osteoporosis
[C]
Dyspepsia
[D]
None of the above
(9)
__________ is an organism used to gauge the quality of an ecosystem.
[A]
Decomposers
[B]
Predator
[C]
Bio-remediator
[D]
Bioindicator
(10)
_________ is a waste disposal method where solid organic wastes are converted to the residue and gaseous products through combustion.
[A]
Incarnation
[B]
Incineration
[C]
Incarceration
[D]
Incubation
(11)
The major pollutant from automoblie exhaust is
[A]
NO
[B]
CO
[C]
SO2
[D]
Soot
(12)
The green house gases, otherwise called radioactively active gases includes
[A]
Carbon dioxide
[B]
CH4
[C]
N2O
[D]
All of these
(13)
Algal bloom results in
[A]
Global warming
[B]
Industrial melanism
[C]
Salination
[D]
Biomagnification
(14)
A high Biological Oxygen Demand (BOD) indicates that:
[A]
water is pure
[B]
absence of microbial action
[C]
Low level of microbial pollution
[D]
High level of microbial pollution
Answer: High level of microbial pollution
(15)
The effects of radioactive pollutants depends upon
[A]
Rate of diffusion
[B]
Energy releasing capacity
[C]
Rate of deposition of the contaminant
[D]
Lesser inter-specific competition
(16)
The range of normal human hearing is in the range of
[A]
10 Hz to 80 Hz
[B]
50 Hz to 80 Hz
[C]
50Hz to 15000 Hz
[D]
15000 Hz and above
(17)
The pollution which does not persistent harm to life supporting system is
[A]
Noise pollution
[B]
Radiation pollution
[C]
Organochlorine pollution
[D]
All of these
(18)
Soap and detergents are the source of organic pollutants like:
[A]
glycerol
[B]
polyphosphates
[C]
sulphonated hydrocarbons
[D]
all of these
(19)
Growing agricultural crops between rows of planted trees is known as
[A]
Social forestry
[B]
Jhum
[C]
Taungya system
[D]
Agroforestry
(20)
The main atmospheric layer near the surface of earth is
[A]
troposphere
[B]
mesophere
[C]
ionosphere
[D]
stratosphere
Take Mock Tests