Dear Aspirants, Do not break the continuity, Attempt the quiz daily, it is our 14th day, At the end, we would realize it how helpful it was, Because 10 questions in day is not difficult.

1. Consider the following statements with regards
to SONAR (Sound navigation and Ranging) and
RADAR (Radio detection and Ranging):
1. SONAR uses sound waves because sound
waves have high penetration in water
2. If radio waves are used instead of sound
waves, range of SONAR will decrease
3. If sound waves are used instead of radio
waves, range of RADAR will increase
Which of the statements given above is/are correct?
(a) 1 and 3 only
(b) 2 only
(c) 1 and 2 only
(d) 1 only

2. Recently, there have been many heat related
deaths in some parts of the country due to Hypoxia.
Identify the correct statements in this regard:
1. Excessive heat causes increase in metabolic

activity.
2. Increase in metabolic activity causes
increase in blood pressure and sweating.
3. Oxygen level in the blood suddenly
decreases.
(a) 1 and 2 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3

3. Which of the following are parts of lotic water
system?
1. Springs
2. Ponds
3. Rivers
4. Bogs
Select the correct answer using the codes given
below:
(a) 1 and 3 only
(b) 2 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4

4. Which of the following represent the difference
between Grazing food chain and Detritus food chain?
1. Source of energy in both the food chains are
different.
2. Grazing food chain is only found in terrestrial
ecosystem while detritus food chain is found
in terrestrial as well as aquatic system.
Select the correct answer using the codes given
below:
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

5. Which of the following ecological pyramids is

always upright/upward?
(a) Pyramid of Biomass

(b) Pyramid of numbers
(c) Pyramid of energy
(d) None of the above

6.
Consider the following statements with regards to
Global Innovation Index (GII) 2014:
1. The theme of 2014 GII is ‘Human factor in
innovation’
2. Political environment and infrastructure are one
the parameters used by GII
3. India is ranked lowest among the BRICS countries
on GII
Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

7. Consider the following pairs:
Supercomputer    Country
1. Titan                  USA
2. K Computer      Japan
3. Mira                  Russia
4. Juqueen           Germany
5. Sequoia            South Korea
Which of the above is/are correctly matched?
(a) 2, 3 and 5
(b) 1, 3 and 5
(c) 1, 2 and 4
(d) 2, 3 and 4

8. Which of the following International Conventions
deal with wildlife conservation?

1. Bonn Convention
2. World Heritage Convention
3. IUCN
4. CITES
Select the correct answer from the codes given
below.
(a) 1, 2 and 4 only
(b) 3 and 4 only
(c) 2 and 3 only
(d) 1, 2, 3 and 4

9. Consider the following statements with respect
to ‘Waste-to-energy’ technologies:
1. Biomethanation is more suitable for wet
biodegradable waste.
2. Gasification is incomplete combustion of dry
waste and it produces CO and H2.
3. Pyrolysis is costlier than Biomethanation.
4. Incineration produces dioxins which are POPs
(Persistent Organic Pollutants)
Which of the statements given above is/are correct?
(a) 1, 2 and 3 only
(b) 2, 3 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4

10. UN conference in Japan, adopted a treaty that
will phase out mercury use by 2020 under Minamata
Convention. Consider the following statements
regarding mercury use:
1. Western countries are the biggest emitters of
mercury along with African and Latin
American countries
2. Coal fired power plants account for highest
mercury emission
3. Use of mercury in thermometers, barometers
and blood pressure monitors is banned under
this treaty
Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only

 

Explanation

 

Q.1 :c
Sonar and Radar work on the same principle
of detecting an object through detection of
reflected waves or generated waves ( sound
and radio respectively) from the object.
SONAR (Sound Navigation and Ranging) uses
sound waves and being a mechanical wave
travels further in the water. Moreso, in water
radio waves are easily absorbed and hence
RADAR could not be used for large distances.
Further, SONAR could be used both in active
and passive mode.
RADAR (Radio detection and ranging) are
generally used for aerial detection as radio
waves have high penetration in air whereas
sound waves have low penetration in air.
Further, the speed of radio waves is
thousands of times faster than sound waves.
Hence, statement 1 is correct. Statement 2 is
correct as range of SONAR will decrease as
radio waves are absorbed more easily.
Statement 3 is incorrect as sound waves are
readily absorbed in air.

Q.2 :b
Clinically, a heat stroke occurs only after
body temperature crosses 104 degrees F,
when excessive metabolism leads to a sharp
fall in blood pressure and oxygen levels, a
condition called hypoxia.
“Increase in metabolism primarily puts
pressure on the heart in a very short time. It
causes expansion of vessels, a major drop in
blood pressure, and hypoxia. Metabolism
goes haywire, creating a toxin overload
which affects multiple organs
– See more at:
http://indianexpress.com/article/expla
ined/explained-toxin-overload-how-heatkills/#
sthash.Kr1b10Ss.dpuf

Q.3 :a
Lotic water system and Lentic water system
are types of fresh water ecosystem. Lotic
water system means moving water system. It
includes rivers, creeks, springs and brooks

 

Q.4 :a
Major difference between the two types of
food chains lies in the primary source of
energy which in the case of grazing food
chain comes from living plant biomass while
in the other from the dead organic matter.
Both the food chains are found in terrestrial
as well as aquatic ecosystem.

Q.5 :c
As per the law of thermodynamics, which
state that there is loss of energy in each
process, with the conversion of energy from
one form to another or while passing of
energy from one productivity level to other
energy is always lost. Thus the pyramid of
energy is always upright.

Q.6 :d
The Global Innovation Index 2014 (GII), in its
7th edition this year, is co-published by
Cornell University, INSEAD, and the World
Intellectual Property Organization (WIPO, an
agency of the United Nations, UN).
The theme of the 2014 GII, the ‘Human
Factor in Innovation’, explores the role of the
individuals and teams behind the innovation
process. Statistically capturing this human
contribution to innovation is a daunting
challenge.
India slipped off 10 places to 76th place.
India is worst performer among BRICS
countries. China – 29, Russia 49, SA – 53,
Brazil 61 (each country is moving up places
except India).

Q.7 :c
Titan- USA
K Computer –Japan
Mira –USA
Juqueen –Germany
Sequoia –USA

Q.8 :d
Convention on International Trade in
Endangered Species of Fauna and Flora
(CITES):
In order to regulate international trade in
endangered species of Wild Life, the Convention on
International Trade in Endangered Species of wild
fauna and flora (CITES) was signed in March 1973.

Q.9 :d
Biomethanation is anaerobic digestion of
organic materials which is converted into
biogas, a gaseous combustible mixture, of
methane (CH4). Biomethanation is a
biological treatment method that can be
used to recover both nutrients and energy
contained in wet biodegradable municipal
waste.

Gasification is incomplete combustion which
produces combustible gas such as
hydrogen, synthetic fuels and is a process
that converts dry organic or fossil based
carbonaceous materials into carbon
monoxide, hydrogen and carbon dioxide at
elevated temperature (500-1800C)

Pyrolysis uses heat to break down
combustible polymeric materials in the
absence of oxygen, producing a mixture of
combustible gases.

Q.10 :b

UN conference in Japan, adopted a treaty that will
phase out mercury use by 2020. 110 countries
signed this treaty, will come into effect in 90 days.
The treaty sets a phase-out date of 2020 for a list of
products and gives governments about 15 years to
end all mercury mining. Countries need to adopt
alternative techs to phase out mercury use.