Q:

The vast amount of sea weeds present in oceans may produce an endless source of

A) Methane	B) Ocean thermal energy
C) Sea wave energy	D) Nuclear energy

Answer & Explanation Answer: A) Methane

Explanation:

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Q:

In Angiosperms, plant embryos in seed have structures called ______.

A) Spore	B) Buds
C) Sprout	D) Cotyledon

Answer & Explanation Answer: D) Cotyledon

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Q:

Which one of the following statements would be INCORRECT to use?

A) An atom of a compound	B) A mole of an element
C) A mole of a compound	D) An atom of an element

Answer & Explanation Answer: A) An atom of a compound

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Q:

Generally covalently bonded molecules ______.

I. have high boiling and melting point as compare to ionically bonded molecules

II. poor conductors of electricity

III. have weak intermolecular force

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: C) Only II and III

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Q:

Statement I :

A person may suffer from tuberculosis if she/he frequently visits crowded place.

Statement II :

Bacteria of tuberculosis spread through droplets by sneezing or coughing.

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: D) Statement I is false but Statement II is true

Explanation:

Tuberculosis (TB) is caused by a type of bacterium called Mycobacterium tuberculosis.

It's spread when a person with active TB disease in their lungs coughs or sneezes and someone else inhales the expelled droplets, which contain TB bacteria.

One would have to spend prolonged periods (several hours) in close contact with an infected person to catch the infection yourself.For example, TB infections usually spread between family members who live in the same house. It would be highly unlikely for you to become infected by sitting next to an infected person on a bus or train. Hence, statement 1 is incorrect.

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Q:

According to ohm's law, which of the following is true?

A) The current flowing through a wire is directly proportional to the Potential Difference applied across its ends	B) The current flowing through a wire is directly proportional to its resistance
C) The current flowing through a wire is indirectly proportional to its length	D) The current flowing through the wire is indirectly proportional to the Potential Difference applied across its ends

Answer & Explanation Answer: A) The current flowing through a wire is directly proportional to the Potential Difference applied across its ends

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Q:

Primary growth in plants occurs by

A. Vertical meristem

B. Lateral meristem

C. Intercalary meristem

D. Apical meristem

A) C & D	B) A, B & D
C) A, B, C & D	D) B, C & D

Answer & Explanation Answer: A) C & D

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Q:

Battle of Gulnabad was led by Mahmud Hotaki and fought in the year ___.

A) 1770	B) 1722
C) 1712	D) 1702

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