Question Discussion & Solution

All except 'Handle' are name of vehicles while 'handle' is the name of one of the parts of a vehicle.

Concept:

In magnetic compass, a magnetic needle which always directs the North-South direction.

• The compass is an instrument used for navigation and orientation that indicates position relative to the geographical directions (or points).
• Typically, a diagram called a compass rose displays the directions to the north, south, east, and west on the compass face.

Elements of Earth's Magnetic Field:

• The magnitude and direction of the magnetic field of the earth at a place are completely given by certain quantities known as magnetic elements.

Explanation:

Earth has its own magnetic field whose poles are

• Magnetic North is in Geographical South pole.
• Magnetic South is in Geographical North Pole.
• A compass needle is a bar magnet with a pointed north pole. It is attracted to the magnetic south pole.
• Hence magnetic needle points in North Direction (Magnetic South). 

CONCEPT:

• The pressure cooker is based on the principle that the boiling of water increases with the increase in pressure.

EXPLANATION:

• When we give heat to the pressure cooker then due to an increase in temperature the steam generated in the vessel.
• Due to this generated steam, the pressure inside the vessel increases. So the food gets cooked soon.
• Thus by the application of pressure the boiling point of the water increases. Hence option 1 is correct.
• There is no relation between food-grains with the boiling point of water. So options 2, 3, and 4 are wrong.

Key Points 

Spleen is an organ on the left side of the abdomen below the stomach. 

It performs two major functions:

1. Storage of blood - Blood vessels of spleen can alter their thicker and become wider or narrower depending on the situation. In case of emergency situations like trauma & severe injuries where a lot of blood gets lost, the spleen expand its vessels and hold the blood. This reserve blood is then transported to the organ where blood is required. For this reason the spleen is also called the blood bank of human body.
2. Filtration of blood - Spleen filters the blood & removes the old & dead RBCs. It acts like a maze from which healthy RBCs can easily pass while the old & dead RBCs get stuck in it. These are then broken down in the spleen by macrophages. For this reason the spleen is also called as The Graveyard of RBCs.

Additional Information 

Heart:

• The heart is a mesodermally derived organ, that is present in the thoracic cavity, in between the two lungs, slightly tilted to the left. It has the size of a clenched fist. It is protected by a double-walled membranous bag, pericardium, enclosing the pericardial fluid.

Liver:

• The liver is the largest gland of the human body. It performs the function of detoxification of harmful substances in the body
• For example, it converts harmful ammonia into urea,  It also breaks down alcohol and other such substances in the blood. 

Bone marrow :

• Bone marrow refers to the tissue located in the hollow interior of long bones. It is composed of adipose tissue, areolar tissue, and blood cells.
• Bone marrow is mainly of two types – red and yellow

The correct answer is Bullets.

Key Points

• When data is in list format Bullets can be used to represent it neatly in MS Word.
• Microsoft products allow you to organize content using bulleted and numbered lists.
  • You can also create customized lists by editing the bullet/number font, color, alignment, and icon style. 
• Within your Microsoft document, place your cursor or highlight the text where you wish to insert a bulleted list. 
• Under the [Home] tab in the “Paragraph” section, click the [Bullets] drop-down menu. 
• Choose a bullet style or select "Bullets and Numbering” to create a customized bullet style.
• To change the alignment of the bulleted list, from the "Paragraph" section, click the [Aligh Text] drop-down menu.
• 

Additional Information

• Change Case
  • You can also capitalize a character you are typing by pressing and holding the SHIFT key while you type.
  • You can also press the CAPS LOCK to have every letter that you type capitalized, and then press the CAPS LOCK again to turn off capitalization.
  • 
• Spacing between Lines
  • Following are the simple steps to adjust the spacing between two lines of the document.
  • Step 1
    • Select the paragraph or paragraphs for which you want to define the spacing.
    • You can use any of the text selection methods to select the paragraph(s).
  • Step 2
    • Click the Line and Paragraph Spacing Button triangle to display a list of options to adjust the space between the lines.
    • You can select any of the options available by simply clicking over them.
  •