General Science Questions

Q:

Which of these equations best summarizes photosynthesis?

A) CO2 + H2O -----> C6H12O6 + 6O2 B) 6O2 + 6H2O -----> C6H12O6 + 6CO2
C) 6CO2 + 6H2O -----> C6H12O6 + 6O2 D) C6H12O6 + 6O2 -----> CO2 + 6H2O
 
Answer & Explanation Answer: C) 6CO2 + 6H2O -----> C6H12O6 + 6O2

Explanation:

Here 6CO2 + 6H2O -----> C6H12O6 + 6O2 is the only option which best summarizes photosynthesis. We know that, photosynthesis is the reverse of cellular respiration in that carbon dioxide is used with water to form sugar, and oxygen is released.

 

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0 1887
Q:

Photosynthesis contributes to plant growth by

A) taking in carbon dioxide and making carbohydrates (sugars) B) converting sugar to oxygen and water
C) taking in oxygen and making wood D) synthesizing carbon dioxide and making cellulose
 
Answer & Explanation Answer: A) taking in carbon dioxide and making carbohydrates (sugars)

Explanation:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms activities.

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0 1884
Q:

What is fingerprint powder made of?

A) Rosin B) Black ferric oxide
C) Lamp black D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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1 1883
Q:

What gas makes up most of the atmosphere?

A) Oxygen B) Helium
C) Nitrogen D) Carbondioxide
 
Answer & Explanation Answer: C) Nitrogen

Explanation:

Our atmosphere is made up of

78% Nitrogen,

21% Oxygen and

1% all other gases like argon, carbon dioxide, neon, and helium.

 

So, Nitrogen makes up the majority of our atmosphere.

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6 1880
Q:

Who synthesized the first wholly artificial gene?

A) Har Gobind Khorana B) Alexander Markham
C) Herbert Boyer D) J.J. Thompson
 
Answer & Explanation Answer: A) Har Gobind Khorana

Explanation:

The first wholly artificial gene was synthesized by Har Gobind Khorana.

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4 1880
Q:

A grouping of stars that resembles a picture

A) Galaxy B) Asteroid
C) Constellation D) Milkyway
 
Answer & Explanation Answer: C) Constellation

Explanation:

A grouping of stars that resembles a picture i.e, forms an imaginary outline or pattern typically representing an animal, mythological person or creature, a god, or an inanimate object is called a constellation. The night sky is divided into 88 sections called constellations.

 

A_grouping_of_stars_that_resembles_a_picture1560168542.png image

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5 1879
Q:

What is the study of flags called

A) Vexillology B) Vexillography
C) Vexology D) None of the above
 
Answer & Explanation Answer: A) Vexillology

Explanation:

The study of flags is called Vexillology and the art of flag design is called as Vexillography. The man who studies flags is called as Vexillologist.

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3 1869
Q:

For a thirsty person, drinking water serves to reduce

A) an instinct B) the set point
C) basal metabolic rate D) a drive
 
Answer & Explanation Answer: D) a drive

Explanation:

For a thirsty person, drinking water serves to reduce a drive.

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1 1867