Questions

Q:

Biogeochemical cycles are crucial to ecosystem function because

A) they keep the planet warm enough for living things to survive B) energy flows through ecosystems in one direction only and is eventually dissipated as heat
C) they prevent catastrophic extinctions D) nutrients and other life-sustaining molecules are in limited supply and must be continually recycled
 
Answer & Explanation Answer: D) nutrients and other life-sustaining molecules are in limited supply and must be continually recycled

Explanation:

Biogeochemical cycles are crucial to ecosystem function because ::

 

1. Chemical elements are available in only limited amounts and must be recycled.

2. Nutrients and other life-sustaining molecules are in limited supply and must be continually recycled.

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Filed Under: General Science
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Q:

A continuous belt of urban population progressively linking several cities is known as

A) Metropolis B) Megalopolis
C) Conurbation D) City sprawl
 
Answer & Explanation Answer: C) Conurbation

Explanation:

Metropolis is a central city with the developed area surrounding it while Megalopolis is a region made up of 2 or more metropolitan areas.

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Filed Under: World Geography

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Q:

Which one of the following elements cannot be detected by "Lassaigne's test"?

A) I B) Cl
C) S D) F
 
Answer & Explanation Answer: D) F

Explanation:

The sodium fusion test, or Lassaigne's test, is used in elemental analysis for the qualitative determination of the presence of foreign elements, namely halogens, nitrogen, and sulphur, in an organic compound. It was developed by J. L. Lassaigne.Silver fluoride is soluble in water and does not precipitate and thus this method cannot be used for detection of fluorine.

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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

Which among the following is the disadvantage of circular list?

A) An info field that contains the information stored in the node B) Can’t traverse the list backward
C) A pointer to the node is given we cannot delete the node D) Both 2 and 3
 
Answer & Explanation Answer: D) Both 2 and 3

Explanation:

Both 2 and 3 are clearly the diadvantages of circular list

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Filed Under: Database
Job Role: Database Administration

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Q:

Nucleotides are attached by bonds between the

A) phosphates and sugars B) nitrates and sugars
C) nitrates and phosphates D) sugars and hydrates
 
Answer & Explanation Answer: A) phosphates and sugars

Explanation:

In DNA, adjacent nucleotides are linked by a phosphodiester bond: a covalent bond is formed between the 5' phosphate group of one nucleotide and the 3'-OH group of another.

 

Hence, in this manner, each strand of DNA has a "backbone" of phosphate-sugar-phosphate-sugar-phosphate.

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Filed Under: Biology
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Q:

Contact force is another name for _________.

A) Friction B) Magnetic force
C) Electrostatic force D) Muscular force
 
Answer & Explanation Answer: D) Muscular force

Explanation:
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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

In which Organelle does Cellular Respiration Occur?

A) Chloroplast B) ATP and NADPH
C) Cytoplasm D) Mitochondria
 
Answer & Explanation Answer: D) Mitochondria

Explanation:

Mitochondria is the Organelle in which Cellular Respiration Occur.

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Filed Under: Biology
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Q:

Red Indians called this local wind  Ice Eater?

A) Mistral B) Chinook
C) Foehn D) Haramattan
 
Answer & Explanation Answer: B) Chinook

Explanation:
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Filed Under: World Geography

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