Q:

Which of the following is biodegradable?

A) Cattle dung	B) Aluminium cans
C) Plastics	D) D.D.T

Answer & Explanation Answer: A) Cattle dung

Explanation:

Any substance that does not cause pollution and is capable of getting decomposed by any living organism is called as Bio degradable. Human & animal excreta, plant wastes etc... come under bio-degradable.

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Q:

What is organic matter in soil is also called

A) residue	B) humus
C) occlusion	D) compact

Answer & Explanation Answer: B) humus

Explanation:

In soil, organic matter consists of plant and animal material that is in the process of decomposing. When it has fully decomposed it is called humus. Soil organic matter serves as a reservoir of nutrients for crops, provides soil aggregation, increases nutrient exchange, retains moisture, reduces compaction,...

This humus is important for soil structure because it holds individual mineral particles together in clusters.

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Q:

What is the reason for formation of Mirage in desert?

A) Refraction of light	B) Reflection of light
C) Total internal reflection of light	D) Both Refraction and Total internal reflection of light

Answer & Explanation Answer: D) Both Refraction and Total internal reflection of light

Explanation:

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Q:

What is the type of Energy possessed by a stretched rubber band?

A) Potential energy	B) Kinetic energy
C) Chemical energy	D) Thermal energy

Answer & Explanation Answer: D) Thermal energy

Explanation:

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Q:

Who among the following is credited with starting the work on plant tissue culture?

A) F.C. Steward	B) P. Maheshwari
C) P.R. White	D) Haberlandt

Answer & Explanation Answer: D) Haberlandt

Explanation:

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Q:

Who among the following is the Chairman of the Fourteenth Finance Commission?

A) C. Rangarajan	B) Vijay Kelkar
C) Y. V. Reddy	D) Rakesh Mohan

Answer & Explanation Answer: C) Y. V. Reddy

Explanation:

The 14th Finance Commission was constituted in January 2014. Commissions chairman was former RBI governor Y V Reddy and its members were Sushma Nath, M. Govinda Rao, Abhijit Sen, Sudipto Mundle.

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Q:

What is NOT right about Bangladesh’s flag?

A) It consists of a red circle in the middle	B) It has a green background
C) The length to width ratio of the rectangle is 4:3	D) The middle circle has a radius of one fifth of the length

Answer & Explanation Answer: C) The length to width ratio of the rectangle is 4:3

Explanation:

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Q:

Which of the following State has bicameral legislature?

A) Tamil Nadu	B) Punjab
C) Sikkim	D) Jammu and Kashmir

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