Questions

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:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

Everyone was pleased to learn the actor would _________ his role as the captivating pirate.

A) reprisw B) rescue
C) save D) free
 
Answer & Explanation Answer: A) reprisw

Explanation:
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Filed Under: English
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Q:

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

________________ various signs of economic slowdown such as languishing industrial production and adverse __________________of the drought on rural livelihoods and demand, the government is apparently unable ____________________ unwilling to increase public spending to _________________ people’s material distress or to kick-start economic ____________________ to increase employment.


adverse __________________of the drought on rural livelihoods and demand

A) effects B) effect
C) affects D) affect
 
Answer & Explanation Answer: A) effects

Explanation:
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Q:

Select the word with the correct spelling.

A) brooches B) linoleam
C) limekilne D) cherubick
 
Answer & Explanation Answer: A) brooches

Explanation:
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Q:

Select the word with the correct spelling.

A) adhision B) fundango
C) canabis D) closeted
 
Answer & Explanation Answer: D) closeted

Explanation:
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Q:

Which of the following bacterium causes crown gall disease in plants?

A) Bacillus thurigiensis B) Agrobacterium tumefaciens
C) Pseudomonas fluorescens D) None of these
 
Answer & Explanation Answer: B) Agrobacterium tumefaciens

Explanation:
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Filed Under: Biology
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Q:

Which of the following elements has the lowest melting point?

A) Sodium B) Tin
C) Radon D) Radium
 
Answer & Explanation Answer: C) Radon

Explanation:
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Filed Under: Chemistry
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Q:

What is the net charge on Calcium fluoride?

A) 1+ B) 0
C) 1­- D) 2­-
 
Answer & Explanation Answer: B) 0

Explanation:
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Filed Under: Chemistry
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