General Knowledge - Environmental Studies
Exam Duration: 45 Mins Total Questions : 30
Which of the following statement about Fjord is incorrect?
- (a)
Most Fjords were formed due to raise in sea level after the melting of Pleistocene ice
- (b)
It is an emergent coast that was originally submerged
- (c)
It is a long narrow inlet of the sea bound by steep slopes
- (d)
It is a glaciated valley that has been inumdated by the sea
Residence time of water molecule in the ocean is:
- (a)
3.5 years
- (b)
3.5 million years
- (c)
35 years
- (d)
35000 years
If waste materials contaminate the source of drinking water which of the following diseases will spread?
- (a)
Scurvy
- (b)
Typhoid
- (c)
Malaria
- (d)
Anaemia
Plants are green because of the presence of a pigment called:
- (a)
glucose
- (b)
nitrogen
- (c)
chlorophyll
- (d)
oxygen
71% of earth surface is covered with:
- (a)
land
- (b)
air
- (c)
water
- (d)
coal
What is considered a life-giving and life-supporting system in Vedic literature?
- (a)
Rain
- (b)
Cloud
- (c)
Stream
- (d)
River
Which aquatic animal was released on a large scale in the Ganga to rid it of waste flesh?
- (a)
Gharial
- (b)
Turtle
- (c)
Dolphin
- (d)
Fishes
Which bird lays the biggest egg relative to it's size?
- (a)
Ostrich
- (b)
Kiwi
- (c)
Parrot
- (d)
None of these
Which animal can live the longest?
- (a)
Elephant
- (b)
Giraffe
- (c)
Galapagos Tortoise
- (d)
None of these
Hyperplasia means:
- (a)
excessive motility of a muscle
- (b)
Voracious eating
- (c)
Abnormal increase in number of cells
- (d)
An increase in size of a cell
Sodium is usually estimated by which of the following analytical technique:
- (a)
Flame Photometry
- (b)
Coulometry
- (c)
High pressure liquid chromotography
- (d)
Visible spectrophotometry
Which of the following pattern of evolution accounts for all the diversity present on earth today?
- (a)
Microevolution
- (b)
Megaevolution
- (c)
Biodiversity
- (d)
Speciation
Which one of the following is the correct food chain?
- (a)
Alage-> Daphnia -> Dragon Fly Nymph -> Newt -> Grass Snake
- (b)
Daphnia -> Dragon Fly Nymph -> Newt -> Algae -> Grass Snake
- (c)
Grass Snake -> Newt -> Dragon Fly Nymph -> Daphnia -> Algae
- (d)
Newt -> Grass Snake -> Dragon Fly Nymph -> Algae -> Daphnia
Which one of the following statements regarding EI-NINO is NOT true?
- (a)
It is an extension of equatorial current towards the western coast of South America.
- (b)
It is an occasional warm current leading to an increase of about 10o C in subsurface water temperature.
- (c)
It develops as temporary replacement of usual cold Peruvian Current.
- (d)
It causes an increase in plankton thriving in cold Peruvian current.
Humans are:
- (a)
Carnivores
- (b)
Herbivores
- (c)
Omnivores
- (d)
None of these
When water enters the cell, over one of the pressures is exerted on cell wall
- (a)
Osmotic pressure
- (b)
Sunaction pressure
- (c)
Turgor pressure
- (d)
Root pressure
Osmosis is the diffusion of
- (a)
Water
- (b)
Solute particles
- (c)
Gases
- (d)
Energy
Endosmosis occurs when the plant cell is placed in
- (a)
Strong solution
- (b)
Isotonic solution
- (c)
Hypotonic solution
- (d)
Hypertonic solution
Root pressure is absent in
- (a)
Herbaceous plants
- (b)
Gymnosperms
- (c)
Dicot plant
- (d)
Trees
Maximum root pressure is observed when
- (a)
Transpiration and absorption are very low
- (b)
Transpiration and absorption very high
- (c)
Transpiration is high and absorption is low
- (d)
Transpiration is low and absorption is high
The existence of root pressure can be demonstrated by
- (a)
Exudation or bleeding
- (b)
Wilting
- (c)
Transpiration
- (d)
Bleeding
Arsenic problem in India is primarily due to:
- (a)
Overexploitation of arsenopyrite in the hinterland
- (b)
Overexploitation of coal in Bihar and Bengal
- (c)
Overexploitation of ground water in the affected areas
- (d)
Overexploitation of surface water in the affected areas
Root pressure is due to
- (a)
Active absorption
- (b)
Passive absorption
- (c)
Increased turgidity
- (d)
Increased transpiration
Which of the following physical forces are supported to be responsible for ascent as sap?
- (a)
Imbibition
- (b)
Capillary force
- (c)
Transpiration pull and cohesion
- (d)
Root pressure
Absorption of water from cut ends of stems disapproves the theory of
- (a)
Capillarity
- (b)
Cohesion-tension theory
- (c)
Root pressure theory
- (d)
Imbibitional pressure theory
Climatic stress is caused by insufficient and/or excessive regime of:
- (a)
Temperature
- (b)
Humidity
- (c)
Solar radiation
- (d)
All the above
The chemical that is used to ripen mangoes is:
- (a)
Calcium sulphide
- (b)
Calcium carbide
- (c)
Calcium carbonate
- (d)
Calcium chloride
Which two of the following statements regarding ISO 14000 series of standards are true? Answer choosing the code given below:
(i) ISO 14000 standards are based on a principle assumption that better environmental management will lead to better environmental performance.
(ii) ISO MO C/u standards are regulatory standards developed by ISO
(iii) ISO 14000 standards are market driven and therefore are based on voluntary involvement of all interests in the market place.
(iv) The adoption of ISO 14000 is a one time commitment
- (a)
(i) and (ii)
- (b)
(ii) and (iii)
- (c)
(i) and (iii)
- (d)
(iii) and (iv)
Transpiration through leaves in called as
- (a)
Cauline transpiration
- (b)
Foliar transpiration
- (c)
Cuticular transpiration
- (d)
Lenticular transpiration
Use of excessive fertilizer in fields leads to the deficiency of ---- in the nearby water body.
- (a)
Carbon dioxide
- (b)
Carbon monoxide
- (c)
Nitrogen
- (d)
Oxygen