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Q:

Statement I :

Bioaccumulation is a process of progressive accumulation of heavy metals and pesticides in an organism.

Statement II :

Large fishes of the pond are found to have higher concentration of pesticides than planktons of the same pond.

 

A) Both the statements are individually true and Statement II is the correct explanation of Statement I B) Both the statements are individually true but Statement II is not the correct explanation of Statement I
C) Statement I is true but Statement II is false D) Statement I is false but Statement II is true
 
Answer & Explanation Answer: B) Both the statements are individually true but Statement II is not the correct explanation of Statement I

Explanation:

Bioaccumulation is defined as the increase in concentration of a substance(s) in an organism or a part of that organism.

The affected organism has a higher concentration of the substance than the concentration in the organism's surrounding environment.

For the second statement: Microorganisms eat pesticide infected things. Invertebrates eat hundreds of the microorganisms and plants infected with the pesticides, accumulating a pretty large amount of the toxin in them.

The invertebrates are generally then eaten by larger invertebrates or amphibians, which ingest hundreds of similar organisms, accumulating an even higher concentration of toxins in their bodies. Then the fish eat hundreds of these organisms, accumulating the highest concentration of toxins in themselves.

 

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Filed Under: Biology
Exam Prep: Bank Exams

1 23805
Q:

Two electric bulbs marked 25W – 220V and 100W – 220V are connected in series to a 440Vsupply. Which of the bulbs will fuse?

A) 25 W B) Both
C) 100 W D) Neither
 
Answer & Explanation Answer: A) 25 W

Explanation:

Resistances of both the bulbs are

 

R1=V^2/P1 = 220^2/25

 

R2 = V^2/P2 = 220^2/100

 

Hence  R1gt ; R2

 

When connected in series, the voltages divide in them in the ratio of their resistances. The voltage of 440 V devides in such a way that voltage across 25 w bulb will be more than 220 V. Hence 25 w bulb will fuse.

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Filed Under: Physics
Exam Prep: AIEEE

224 23800
Q:

Improve the bracketed part of the sentence.

Ramesh says, he has already repaid me but I can't recall, so I'll have (to take his word).

 

A) to take his word as true B) to take him at his word
C) to take his for word for it D) no improvement
 
Answer & Explanation Answer: B) to take him at his word

Explanation:
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Filed Under: English
Exam Prep: CAT

0 23781
Q:

Name the first Indian businessman who found place in the cover story of Forbes magazine

A) Anil Ambani B) Dr Reddy
C) Azim Hasham Premji D) Narayan Murthy
 
Answer & Explanation Answer: C) Azim Hasham Premji

Explanation:
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Filed Under: Business Awareness

181 23780
Q:

A person who speaks many languages

 

A) Polyglot B) Linguist
C) Bilingual D) Monolingual
 
Answer & Explanation Answer: A) Polyglot

Explanation:

Polyglot - A person who knows or speaks many languages.

Linguist - A person who speaks  foreign languages.

 

 

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Filed Under: English
Exam Prep: Bank Exams , GRE , TOEFL

0 23777
Q:

D.D.T. was invented by

A) Paul Muller B) John Dalton
C) Rudolf D) None of these
 
Answer & Explanation Answer: A) Paul Muller

Explanation:

Swiss chemist Paul Hermann Muller discovered DDT (dichloro-diphenyl-trichloroethane) noted its effectiveness as a pesticide during World War II to control malaria and typhus among civilians and troops, a discovery that earned him a Nobel Prize in 1948.

 

It was first synthesized in the year 1874.

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Filed Under: Inventions
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

63 23736
Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives.


Everyone expected Mary Zophres to win for her retro-revival Technicolor clothes in La La Land — the eventual winner, Colleen Atwood for Fantastic Beasts and Where to Find Them, seemed surprised too. But as other awards began to slip away from the well-reviewed musical, a theme could be teased out. What is Fantastic Beasts if not a plea for equal treatment of people, magical or otherwise? Then, Arrival, a film about the inherent benignity of aliens (read immigrants) won for Best Sound Editing. Hacksaw Ridge, which is, in a way, an anti-guns movie, won in two categories. Fences, about an African-American father who fears racial discrimination, took home the Oscar for Best Supporting Actress. Earlier, Moonlight, featuring two minority communities (black and gay), won for Best Supporting Actor. This turned out to be one of those years the Oscar voter was underestimated. As a majority of voters are actors, there was the tendency to think they'd reward La La Land, a celebration of creation: the heroine wants to make movies, the hero wants to make jazz. It looked like the year of The Artist all over again.

 

What does the lead female actor in La La Land want to do?

A) Make jazz B) Make movies
C) Make music D) Make magic
 
Answer & Explanation Answer: B) Make movies

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 23699
Q:

The 2017 Indian Premier League (IPL 2017) first match on 5 April, 2017 was held in ?

A) Banglore B) Delhi
C) Hyderabad D) Kolkata
 
Answer & Explanation Answer: C) Hyderabad

Explanation:

The 2017 Indian Premier League is scheduled to start on 5th April 2017 and finish on 21 May 2017. The opening match and the final will be played at the Rajiv Gandhi International Cricket Stadium in Hyderabad.

The first match was between Sun Risers Hyderabad and Royal Challengers Banglore.

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Filed Under: Sports

211 23698