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Q:

Radio waves sent out by a radio stations are reflected by

A) troposphere B) stratosphere
C) mesosphere D) ionosphere
 
Answer & Explanation Answer: D) ionosphere

Explanation:

This is a layer of atmosphere about 60 to 70 km above the earth and extends to about 400km. It contains ionised particles which can reflect radio waves making radio communication round the world possible.

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Filed Under: Physics

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Q:

Which method of expressing direction is indicated in the illustration?

A) Section B) Interjuction
C) Intersection D) None of the above
 
Answer & Explanation Answer: C) Intersection

Explanation:

Which_method_of_expressing_direction_is_indicated_in_the_illustration1556259373.png image

 

Intersection method of expressing direction is indicated in the illustration.

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Filed Under: Physics
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Q:

Which of the following stores data permanently in a computer?

A) ALU B) Cache Memory
C) RAM D) ROM
 
Answer & Explanation Answer: D) ROM

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams

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Q:

_U_R_Y_

Complete this 7 letter word _U_R_Y_

1. Girls like it
2. Boys use it
3. Parents hate it.

Answer

HURRAYS.

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Subject: Missing letters puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
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Q:

Select the correct statement about oxygen transport in blood

A) A 50% oxygen saturation level of blood returning to the lungs might indicate an activity level higher than normal B) During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2
C) During conditions of acidosis, hemoglobin is able to carry oxygen more efficiently D) Increased BPG levels in the red blood cells enhance oxygen-carrying capacity
 
Answer & Explanation Answer: B) During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2

Explanation:
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Filed Under: Biology
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Q:

What is the name of Merilin Monro

A) Merilin Monro B) Norma Jean Bekar
C) Dorothi Manro D) Kathrin Bekar
 
Answer & Explanation Answer: B) Norma Jean Bekar

Explanation:
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Filed Under: Books and Authors

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Q:

Who Invented Microwave Oven ?

A) Lewis Edson Waterman B) Levi Strauss
C) Percy LeBaron Spencer D) Sir Sandford Fleming
 
Answer & Explanation Answer: C) Percy LeBaron Spencer

Explanation:
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Filed Under: Inventions

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Q:

Planets do not twinkle because

A) Far distance B) Total internal reflection
C) Refraction D) Near distance
 
Answer & Explanation Answer: D) Near distance

Explanation:

Stars twinkle because they’re so far away from Earth that when light from the stars passes through the atmosphere, it is bent countless times due to refraction, making it look like as if they were blinking. The sun and other planets doesn’t twinkle because it’s too close to Earth compared to other stars.

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Filed Under: General Science
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