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Q:

Which of the following reactions are exothermic?

$1) C + O_{2} \to {CO}_{2} 2) 2 Mg + O_{2} \to 2 MgO 3) {CuSO}_{4} + 5 H_{2} O \to {CuSO}_{4} . 5 H_{2} O 4) All the above$

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: D) 4

Explanation:

Here all the given options are Exothermic reactions. Exothermic reactions are those reactions which involves the release of heat.

Generally all the combining reactions are exothermic in nature.

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Filed Under: Chemistry
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Q:

Which alphabet is a question?

A) X	B) Y
C) C	D) S

Answer & Explanation Answer: B) Y

Explanation:

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Filed Under: Word Puzzles
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Q:

Which describes how media and networks interact?

Answer

Media and networks are connected in such a way that the consumer receives the effective information. Media goes into different networks.

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Subject: Advertising and Media

Q:

Which statements are true about both Japan and China?

A) Japan and China share religious values	B) Japan does not place restrictions on religion and reproduction like China does
C) Japan is a constitutional monarchy, while China is a communist state	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

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Filed Under: World Geography
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Q:

I go around and in the house but never touches the house. What am I?

Answer

The sun moves around and in the house, but cannot touch the house.

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Subject: Word Puzzles Exam Prep: GATE , CAT , Bank Exams , AIEEE
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Q:

Which of the following is a renewable resource of energy?

A) Hydrogen fuel	B) Wind energy
C) Solar energy	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.

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Filed Under: Physics
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Q:

Which of the following indicates scuba diving or snorkeling activity?

A) A red flag with a diagonal white stripe	B) The blue and white alpha flag
C) Both A & B	D) None of the above

Answer & Explanation Answer: A) A red flag with a diagonal white stripe

Explanation:

A red flag with a diagonal white stripe indicates scuba diving.

which_of_the_following_indicates_scuba_diving_or_snorkeling_activity1536211675.jpg image

And the alpha flag indicates that there is a diver inside.

SCUBA means Self Contained Underwater Breathing Apparatus.

which_of_the_following_indicates_scuba_diving_activity1536211652.jpg image

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Filed Under: Sports
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Q:

Which of these statements is true of the kingdom protista?

A) All are unicellular	B) All are hetertrophic
C) All are autotrophic	D) All are eukaryotic

Answer & Explanation Answer: D) All are eukaryotic

Explanation:

Protists are eukaryotic organisms that cannot be classified as a plant, animal, or fungus. They are mostly unicellular, but some, like algae, are multicellular.

which_of_these_statements_is_true_of_the_kingdom_protista1536211148.jpg image

Kelp, or 'seaweed,' is a large multicellular protist that provides food, shelter, and oxygen for numerous underwater ecosystems.

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Filed Under: Biology
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