Questions

Q:

To the economist, total cost includes

A) neither implicit nor explicit costs. B) implicit, but not explicit, costs.
C) explicit, but not implicit, cost. D) explicit and implicit costs.
 
Answer & Explanation Answer: D) explicit and implicit costs.

Explanation:
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Q:

What are the two types of pure substances?

Answer

An atom is the smallest particle of a substance. Chemical substances are divided into two major groups. They are


1. Pure Substances (and)


2. Mixtures.


 


There are two types of pure substances that are Elements and Compounds.


 


Elements : An element is a substance that is made up of only one kind of atoms and cannot be broken down into simpler substances by chemical means. Metals and Non- metals come under elements.


Examples of elements are Iron, Silver, Gold, Mercury etc.


 


Compounds : A Compound is a substance that is formed when two or more elements combine chemically.


Examples of compounds are Water, Carbon dioxide, methane, vinegar etc.


 


Mixtures : A Mixture is formed when two or more substances mixed together but not chemically combined.


Example: Air.

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Q:

Which of the following is a characteristic of the Ascomycota?

A) Sac formation B) Zygospore formation
C) Basidium formation D) All of the above
 
Answer & Explanation Answer: A) Sac formation

Explanation:

Ascomycota is a division or phylum of the kingdom Fungi that, together with the Basidiomycota, form the subkingdom Dikarya. Its members are commonly known as the sac fungi or ascomycetes. 

 

Hence, Sac formation is a characteristic of the Ascomycota fungi.

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Q:

Which is the following is not an effect of volcanoes

A) Africa B) Australia
C) North America D) South America
 
Answer & Explanation Answer: B) Australia

Explanation:
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Q:

Which are the regional Commissions of the UN Economic and Social Council

A) Economic Commission for Europe, Economic Commission for Asia and Pacific B) Economic Commission for Africa
C) Economic Commission for Latin America and the Caribbean D) All the above
 
Answer & Explanation Answer: D) All the above

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Q:

Which stage of cellular respiration produces the most ATP?

A) Glycolysis B) Kreb's cycle
C) Electron transport chain D) All the above
 
Answer & Explanation Answer: C) Electron transport chain

Explanation:

There are 3 stages in cellular respiration. They are:

1. Glycolysis

2. Kreb's cycle

3. Electron transport chain

 

Here, Glycolysis produces only 2 ATP whereas Kreb's cycle produces no ATP. Electron transport chain of the cellular respiration produces the maximum ATP.

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Q:

What was the strength of Indus economy?

A) Trading B) Agriculture
C) Electricity D) Mining
 
Answer & Explanation Answer: B) Agriculture

Explanation:
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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

Reporters and city officials gathered at a Chicago railroad station one afternoon in 1953. The person they were meeting was the 1952 Nobel Peace Prize winner. A few minutes after the train came to a stop, a giant of a man - six feet four inches - with bushy hair and a large moustache stepped out from the train. Cameras flashed. City officials approached him with hands outstretched. Various people began telling him how honoured they were to meet him.

The man politely thanked them and then, looking over their heads, asked if he could be excused for a moment. He quickly walked through the crowd until he reached the side of an elderly black woman who was struggling with two large suitcases. He picked up the bags with a smile, escorted the woman to a bus. After helping her aboard, he wished her a safe journey. As he returned to the greeting party he apologized, "Sorry to have kept you waiting." Not many whites would have done what he did.

The man was Dr. Albert Schweitzer, the famous missionary doctor who had spent his life helping the poor in Africa. In response to Dr. Schweitzer's action, one member of the reception committee said with great admiration to the reporter standing next to him, "That's the first time I ever saw a sermon walking."


Dr. Albert Schweitzer _____ .

A) was not prejudiced against Whites B) was not prejudiced against Blacks
C) was prejudiced against Whites D) was prejudiced against Blacks
 
Answer & Explanation Answer: B) was not prejudiced against Blacks

Explanation:
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