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New for SSC CGL students

Friday, 9 October 2015

Which one of the following is the correct sequence about various levels of organization of Biosphere?

Question 90 Which one of the following is the correct sequence about various levels of organization of Biosphere?

A) Eco system - Biosphere - Community - Population
B) Populatio - Organism - Eco system  - Biosphere
C) Organism - Community - Population - Biosphere
D) Organsim - Population - Eco system - Biosphere
Answer:  Organsim - Population - Eco system - Biosphere

Explanation : Actual order of levels of organization of Biosphere is Organsim - Population - Community - Eco system - Biosphere

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Carbon and energy requirements of autotrophic organisms are fulfilled by

Question 92 Carbon and energy requirements of autotrophic organisms are fulfilled by:

A) Photosynthesis
B) Gluconeogenesis
C) Glycogenesis
D) External sources

Answer: Photosynthesis

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Which one of the following describes the Lithosphere?

Question 94 Which one of the following describes the Lithosphere?

A) Upper and lower mantle
B) Crust and upper mantle
C) Crust and core
D) Mantle and core

Answer: Crust and upper mantle

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Which of the following statements regarding heavy water are correct?

Question 95 Which of the following statements regarding heavy water are correct?

1. It is extensively used as a moderator in nuclear reactors
2. It cannot be used in exchange reaction to study reaction mechanism
3. Viscosity of heavy water is relatively smaller than that of ordinary water
4. The dielectric constant of heavy water is smaller than that of ordinary water
Select the correct answer using the code given below:
A) 1 and 2
B) 2 and 3
C) 3 and 4
D) 1 and 4

Answer: 1 and 4

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Conservation of momentum in a collision between particles can be understood on the basis of

Question 96 Conservation of momentum in a collision between particles can be understood on the basis of:

A) Newton's first law of motion
B) Newton's second law of motion
C) Both Newton's second law of motion and Newton's third law of motion
D) Conservation of energy

Answer: Both Newton's second law of motion and Newton's third law of motion

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To weld metals together, high temperature is required. Such a high temperature is obtained by burning

Question 98 To weld metals together, high temperature is required. Such a high temperature is obtained by burning:

A) Acetylene in oxygen
B) LPG in oxygen
C) Methane in oxygen
D) Acetylene in nitrogen

Answer: Acetylene in oxygen

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Magnetic meridian is an imaginary

Question 100 Magnetic meridian is an imaginary

A) line along north-south
B) point
C) vertical plane
D) horizontal plane

Answer: line along north-south

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An up fold in rock is

Question 101 An up fold in rock is:

A) graben
B) horse
C) anticline
D) syncline

Answer: anticline

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