Q:

The concept of carbon credit originated from

A) G-8 Summit, Hciligendamm	B) Earth Summit, Rio de Janeiro
C) Montreal Protocol	D) Kyoto Protocol

Answer & Explanation Answer: D) Kyoto Protocol

Explanation:

The concept of carbon credit for manufacturers originated with the Kyoto Agreement (Protocol) of 1997.

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Q:

A copper wire of radius r and length lhas a resistance of R. A second copper wire with radius 2r and length lis taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be

A) 5 R	B) 5 R/4
C) 4 R/5	D) R/5

Answer & Explanation Answer: D) R/5

Explanation:

1st copper wire: R = pl/A = pl/ πr2

2ndcopper wire: R’ = p’l’/A’ = pl/(4 πr2) = R/4

If joined in parallel, (1/Req) = (1/R) + (1/R’)

= 1/R + 4/R1/Req= 5/R

Req= R/5

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Q:

A body given with an initial velocity moved under the effect of gravity is called?

Answer

Projectile

Workspace

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Subject: Physics

6 3039

Q:

Which is the only gem of world made of a single element?

A) Platinum	B) Diamond
C) Emerald	D) Ruby

Answer & Explanation Answer: B) Diamond

Explanation:

The only gem of world made of a single element is Diamond.

the_only_gem_of_world_made_of_a_single_element1563602197.jpg image

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Q:

The most populous city in the world is ?

A) Tokyo	B) Paris
C) Peking	D) London

Answer & Explanation Answer: A) Tokyo

Explanation:

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Q:

Golden Temple of Amritsar is located in which country?

A) Bangladesh	B) Pakistan
C) China	D) India

Answer & Explanation Answer: D) India

Explanation:

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Q:

Melvin calvin got Noble Prize for his studies on

A) Light reaction	B) Plant hormones
C) Carbon fixation	D) Photons

Answer & Explanation Answer: C) Carbon fixation

Explanation:

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Filed Under: Biology

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Q:

Heat is associated with

A) K.E of random motion of molecules	B) K.E of orderly motion of molecules
C) Total K.E of random and orderly motion of molecules	D) None of these

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