Q:

Indian-American girl won 2017 Young Scientist Challenge for water contamination detection device. What is her name ?

A) Kavita Kumari	B) Gitanjali Rao
C) Hetal Rao	D) Savita Sharma

Answer & Explanation Answer: B) Gitanjali Rao

Explanation:

Gitanjali Rao, an 11-year-old Indian-American schoolgirl, was named as "America’s top young scientist" for inventing a cost-effective, quick lead-contamination detector in water. The seventh-grade student was inspired by the large-scale lead contamination in water in Flint, Michigan, that came to light recently.

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Filed Under: Famous Personalities
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Q:

Which of the following is a film directed by Mr. Buddhadeb Das Gupta

A) Krantiveer	B) Mohra
C) Character	D) 1942 - A Love Story

Answer & Explanation Answer: A) Krantiveer

Explanation:

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Filed Under: Books and Authors

2 3092

Q:

Factors that may influence enzyme activity?

A) pH	B) Substrate concentration
C) Temperature	D) All the above

Answer & Explanation Answer: D) All the above

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

DNA is made of repeating units called

A) Nucleotides	B) Ribozomes
C) Peptides	D) Aminoacids

Answer & Explanation Answer: A) Nucleotides

Explanation:

DNA is a very long chain polymer made up of thousands of repeating units called nucleotides.

Nucleotide Unit is composed of a phosphate group, a pentose sugar, and a nitrogenous base.

The sides of the DNA ladder are made up of alternating deoxyribose sugar -- phosphate group units.

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Filed Under: Biology
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Q:

Which of the following is an example of system software?

A) Microsoft word	B) Calculator
C) Operating system	D) RAM

Answer & Explanation Answer: C) Operating system

Explanation:

In a brief, the system software is the interface between the hardware and user applications. System software is a type of computer program that is designed to run a computer’s hardware and application programs.

Examples : OS, System utilities, BIOS like mouse, keyboard, hard disc, Device drivers, Assembler,...

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Filed Under: Computer
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Q:

Where were wigs first invented?

A) Japan	B) France
C) Egypt	D) China

Answer & Explanation Answer: C) Egypt

Explanation:

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Filed Under: Inventions

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Q:

Who invented Gramophone?

A) Michael Faraday	B) Fahrenheit
C) Alexander Graham Bell	D) Thomas Alva Edison

Answer & Explanation Answer: C) Alexander Graham Bell

Explanation:

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Filed Under: Inventions

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Q:

Who amongst the following is known as the Light of Asia

A) Jesus Christ	B) Lord Buddha
C) Prophet Mohammad	D) Zarathustra

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