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Question 1 of 5
1. Question
2 points
“Chandler wobble” is:
Correct
Correct Answer: A
Explanation
Ans: (a) the change in the spin of Earth on its axis.
The Chandler wobble or Chandler variation of latitude is a small deviation in the Earth’s axis of
rotation relative to the solid earth, which was discovered by and named after American
astronomer Seth Carlo Chandler in 1891. Thus option (a) is correct
Incorrect
Correct Answer: A
Explanation
Ans: (a) the change in the spin of Earth on its axis.
The Chandler wobble or Chandler variation of latitude is a small deviation in the Earth’s axis of
rotation relative to the solid earth, which was discovered by and named after American
astronomer Seth Carlo Chandler in 1891. Thus option (a) is correct
Question 2 of 5
2. Question
2 points
Which of the following are used as bio-communicators among animal species?
1. Pheromones
2. Vocal Sounds
3. Body Language
4. Dancing
Select the correct answer using the code given below:
Correct
Correct Answer: D
Explanation
Ans: (d) all are correct
Most animals use “body language” as well as sound and smell in order to communicate with one
another. Thus 3 is correct. Many animals communicate by smell: they release pheromones
(airborne chemicals) to send messages to others. Pheromones play an important part in
reproduction and other social behavior. They are used by many animals, including insects, wolves,
deer etc. thus 1 is correct.
Bees dance when they have found nectar. The scout bee will dance in the hive, and the dance
directs other bees to the location of the nectar. Thus 4 is correct.
Animals use sound to warn others to stay out of its territory and also to attract a mate. They make
at least twenty five different sounds which include growling, squawking, squealing, cooing, and
rattling. Hence 2 is correct.
Incorrect
Correct Answer: D
Explanation
Ans: (d) all are correct
Most animals use “body language” as well as sound and smell in order to communicate with one
another. Thus 3 is correct. Many animals communicate by smell: they release pheromones
(airborne chemicals) to send messages to others. Pheromones play an important part in
reproduction and other social behavior. They are used by many animals, including insects, wolves,
deer etc. thus 1 is correct.
Bees dance when they have found nectar. The scout bee will dance in the hive, and the dance
directs other bees to the location of the nectar. Thus 4 is correct.
Animals use sound to warn others to stay out of its territory and also to attract a mate. They make
at least twenty five different sounds which include growling, squawking, squealing, cooing, and
rattling. Hence 2 is correct.
Question 3 of 5
3. Question
2 points
The Ministry of Road Transport & Highways has launched the first of its kind pilot project on
Flexi-Fuel Strong Hybrid Electric Vehicles (FFV-SHEV) in India. Consider the following
statements in context of the same:
1. It would run on 100% petrol as well as 20 to 100% blended ethanol and electric power.
2. It is not possible to upgrade existing vehicles to run on high blend of ethanol fuel.
3. India’s first flexi-fuel vehicle is expected to be ready by 2023.
Which of the above statement/s is/are correct?
Correct
Correct Answer: A
Explanation
Ans: (a) 1 is correct and 2 and 3 are incorrect.
●Ministry of Road Transport & Highways has launched first of its kind pilot project on Flexi-Fuel
Strong Hybrid Electric Vehicles (FFV-SHEV) in India which would run on 100% petrol as well as
20 to 100% blended ethanol and electric power. Hence statement 1 is correct.
●Upgrading existing vehicles to run on high blend of ethanol fuel, however, is possible but
expensive and not considered feasible. Thus statement 2 is incorrect.
●India is aiming to achieve E10 by 2022 and E20 by (20% ethanol blend) by 2025.
Bharat Stage Norms – India directly shifted from BS-IV to BS-VI norms.
●Toyota’s much-awaited Corolla Altis Hybrid, India’s first Ethanol-ready flex fuel hybrid car (FFVSHEV)
was unveiled by Union Minister of Road Transport and Highways. thust statement 3 is also
incorrect.
Incorrect
Correct Answer: A
Explanation
Ans: (a) 1 is correct and 2 and 3 are incorrect.
●Ministry of Road Transport & Highways has launched first of its kind pilot project on Flexi-Fuel
Strong Hybrid Electric Vehicles (FFV-SHEV) in India which would run on 100% petrol as well as
20 to 100% blended ethanol and electric power. Hence statement 1 is correct.
●Upgrading existing vehicles to run on high blend of ethanol fuel, however, is possible but
expensive and not considered feasible. Thus statement 2 is incorrect.
●India is aiming to achieve E10 by 2022 and E20 by (20% ethanol blend) by 2025.
Bharat Stage Norms – India directly shifted from BS-IV to BS-VI norms.
●Toyota’s much-awaited Corolla Altis Hybrid, India’s first Ethanol-ready flex fuel hybrid car (FFVSHEV)
was unveiled by Union Minister of Road Transport and Highways. thust statement 3 is also
incorrect.
Question 4 of 5
4. Question
2 points
What do you understand by ‘Biological Dark Matter’?
Correct
Correct Answer: B
Explanation
Ans: (b)unclassified or poorly understood genetic material
●Biological dark matter is what scientists have called segments of genetic material that we can’t
quite explain – yet.
●Biological dark matter is an informal term for unclassified or poorly understood genetic material.
This genetic material may refer to genetic material produced by unclassified microorganisms.
Incorrect
Correct Answer: B
Explanation
Ans: (b)unclassified or poorly understood genetic material
●Biological dark matter is what scientists have called segments of genetic material that we can’t
quite explain – yet.
●Biological dark matter is an informal term for unclassified or poorly understood genetic material.
This genetic material may refer to genetic material produced by unclassified microorganisms.
Question 5 of 5
5. Question
2 points
Which of the following species do not have sex chromosomes?
1. Turtles
2. Lizards
3. Butterfly
4. Crocodiles
Select the correct answer from the options given below:
Correct
Correct Answer: C
Explanation
Ans: (c) 1, 2 and 4 only are correct
●Unlike humans, turtles, lizards and other reptiles – such as crocodiles – do not have sex
chromosomes. Their sex is determined based on the environment, which makes them especially
vulnerable to climate change. Thus option (c) is correct.
Incorrect
Correct Answer: C
Explanation
Ans: (c) 1, 2 and 4 only are correct
●Unlike humans, turtles, lizards and other reptiles – such as crocodiles – do not have sex
chromosomes. Their sex is determined based on the environment, which makes them especially
vulnerable to climate change. Thus option (c) is correct.
