Questions

Q:

Is air homogeneous or heterogeneous?

A) homogeneous B) heterogeneous
C) Both A & B D) None of the above
 
Answer & Explanation Answer: A) homogeneous

Explanation:

A Mixture is a material made up of two or more different substances which are mixed.

 

Mixtures can be either homogeneous or heterogeneous.

 

* A homogeneous mixture is a type of mixture in which the composition is uniform and every part of the solution has the same properties.

* A heterogeneous mixture is a type of mixture in which the components can be seen, as there are two or more phases present.

 

Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances.

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Q:

A song always has

A) Musician B) Tymbal
C) Word D) Chorus
 
Answer & Explanation Answer: C) Word

Explanation:

Without a word in it, it can't be called as song.

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Q:

Which of these relationships is true of an uncharged atom?

A) The atomic mass is equal to the atomic number. B) The number of electrons is equal to the number of neutrons.
C) The number of protons is equal to the number of electrons. D) The atomic mass is equal to the number of electrons.
 
Answer & Explanation Answer: C) The number of protons is equal to the number of electrons.

Explanation:

The number of protons is equal to the number of electrons. That is the number of positive charges is equal to the number of negative charges.

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Q:

The water fall, with the highest fall in india, is the 

A) Jog Falls, Karnataka B) Courtallam Falls, Tamil Nadu
C) Beraghat Falls, Madhya pradesh D) Ettipotala Falls, Andhra pradesh
 
Answer & Explanation Answer: A) Jog Falls, Karnataka

Explanation:

The Sharavati river in Karnataka state of india drops 253 metresin four separate falls named- the Raja, the Rani, the Rocket and the Roarer -together known as jog falls. 

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Filed Under: Indian Geography

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Q:

Which of the following harmone is called the emergency harmone ?

A) Insulin B) Adrenaline
C) Estrogen D) Oxytocin
 
Answer & Explanation Answer: B) Adrenaline

Explanation:
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Q:

At what temperature do pathogenic bacteria grow best in food?

A) 5 to 15 degrees Celsius B) 15 to 25 degrees Celsius
C) 20 to 45 degrees Celsius D) 40 to 65 degrees Celsius
 
Answer & Explanation Answer: C) 20 to 45 degrees Celsius

Explanation:

The Bacteria that causes Food Borne illness are called Food Borne Pathogens. Most of the pathogens are mesophilic in nature, optimum temperature may be around 20-45 degree celsius. This range of temperatures is often called the "Danger Zone." Dry foods do not support the growth of bacteria.

 

In order to kill pathogenic bacteria you need temperatures above 74ºC. Temperature is the easiest factor to control in order to prevent bacterial growth.

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Q:

What is the name of the law for the storage and use of data in the UK?

Answer

Data Protection Act

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Q:

Which one of the following is an abiotic and renewable resource

A) Iron ore B) Livestock
C) Water D) Forests
 
Answer & Explanation Answer: C) Water

Explanation:
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Filed Under: Indian Economy

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