Q:

The most reactive of the following metals is

A) Al	B) Ca
C) Ni	D) Pb

Answer & Explanation Answer: B) Ca

Explanation:

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1 35920

Q:

Seismic waves are recorded by an instrument called the ________________.

A) seismograph	B) odograph
C) isograph	D) lithograph

Answer & Explanation Answer: A) seismograph

Explanation:

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Filed Under: Physics
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0 35855

Q:

What is the capital of Ghana?

A) Banjul	B) Bishkek
C) Accra	D) Ankara

Answer & Explanation Answer: C) Accra

Explanation:

The capital of Ghana is Accra and its currency is Ghanaian Cedi.

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13 35820

Q:

Which of the following statements is/are correct?

1.In June 2016, the LIGO group of scientists announced the detection of a second set of gravitational waves.

2.Gravitational waves were generated due to merger of two black holes at about 1.4 billion light-years distant.

3.Gravitational waves were inserted due to collision of two white dwarf stars at about 1.4 billion light-years distant.

Select the correct answer using the code given below.

A) 1 only	B) 1 and 2 only
C) 2 and 3 only	D) 1, 2 and 3

Answer & Explanation Answer: D) 1, 2 and 3

Explanation:

All are correct. Gravitational waves don’t get distorted or altered by interactions with matter as they go through space. gravitational waves have pure information about the objects and events that created them. The Government of India has given approval for the world’s third advanced Laser Interferometer Gravitational Wave Observatory (LIGO-India) to set up in India.

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Filed Under: General Science
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0 35802

Q:

Which of the following is not a vector quantity?

A) speed	B) velocity
C) torque	D) displacement

Answer & Explanation Answer: A) speed

Explanation:

Which_of_the_following_is_not_a_vector_quantity1552385336.png image

A vector quantity is a quantity which has both magnitude and direction. Here in the given options, speed is a scalar quantity but not the vector quantity.

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Filed Under: Physics
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Job Role: Analyst , Bank Clerk , Bank PO

255 35799

Q:

Which one of the following organisms is dependent on saprophytic mode of nutrition?

A) Agaricus	B) Ulothrix
C) Riccia	D) Cladophora

Answer & Explanation Answer: A) Agaricus

Explanation:

Saprophytic fungi feed on dead plant and animal remains. Many are extremely beneficial, breaking down this organic material into humus, minerals and nutrients that can be utilised by plants. Agaricus is one among them.

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Filed Under: Biology
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2 35735

Q:

Statement I :

Tides are the rise and fall of sea levels caused by the combined effects of the gravitationed forces exerted by the Moon and the Sun and the rotation of the Earth.

Statement II :

The Earth rotates from west to east.

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: B) Both the statements are individually true but Statement II is not the correct explanation of Statement I

Explanation:

Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of Earth.

Statement 2 is also correct. But it is not the correct explanation for the 1st statement.

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Filed Under: General Science
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0 35665

Q:

When was the national emblem of Bangladesh adopted?

A) 1971	B) 1973
C) 1975	D) 1977

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