Question Discussion & Solution

The correct answer is option 4.

Explanation:

• Compact Disc-Recordable (CD-R) technology is known as Write Once-Read Many (WORM), which allows you to write data onto a disk just once that can not be erased.
• CD-R discs are blank CDs that can record data written by a CD burner. After that, the data is permanent and can be read any number of times. ​

Additional Information

• The data burned onto a CD-R disc is permanent.

• CD-RW Stands for "Compact Disc Re-Writable."
  • A CD-RW is a blank CD that can be written to by a CD burner. 
  • CD-RW can be written multiple times.
• CD-ROM Stands for "Compact Disc Read-Only Memory."
  • A CD-ROM is a CD that can be read by a computer with an optical drive. 

• ​Another term of Worm (termed as 'malware') A computer worm is a malicious virus, that is a self-replicating software program that affects the functions of hardware and software programs.​​

The correct answer is option 4, i.e Carbon.

• Carbon forms the maximum number of compounds in the periodic table.
• Since carbon has the property of tetra valency and catenation so they can form a maximum number of compounds.
• Carbon exists in several allotropic forms. Graphite and diamond are examples of allotropes of carbon that have different properties.
• The atomic number of carbon= 6. It lies in the 14th group in the periodic table.

Deletion takes place at the FRONT of the queue.

96 is the largest element in the given queue.

1^st deque operation:

28 is deleted

2^nd deque operation:

15 is deleted

3^rd operation:

19 is deleted

4^th operation:

68 is deleted

5^th operation:

96 is deleted

The correct answer is about 70% water.

Important Points

• The Top Four Elements Found in the Human Body: oxygen (65%), carbon (18.5%), hydrogen (9.5%), nitrogen (3.2%).
• The other trace elements (less than 0.01%) are boron (B), cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), fluorine (F), iodine (I), iron (Fe), manganese (Mn), molybdenum (Mo), selenium (Se), silicon (Si), tin (Sn), vanadium (V), and zinc (Zn).
• The six major nutrients are carbohydrates (CHO), lipids (fats), proteins, vitamins, minerals, water.
• The functions of water in the human body:
  • Water carries nutrients and oxygen to all cells in the body.
  • Water is required for breathing.
  • Water regulates your body temperature.
  • Water protects and cushions vital organs.
  • Water cushions joints.
  • Water removes waste.

Key Points

• Calcium (Ca) is the most abundant mineral in the body and is essential for a number of vital functions.
  • Also helps muscles relax and contract, important in nerve functioning, blood clotting, blood pressure regulation, immune system health.
• Iron (Fe), Part of a molecule (haemoglobin) found in red blood cells that carries oxygen in the body, needed for energy metabolism.
• Iodine found in thyroid hormone, which helps regulate growth, development, and metabolism.
• Chromium works closely with insulin to regulate blood sugar (glucose) levels.

The set of given words are Deer, Cow, Giraffe are herbivorous. The most similar word is Horse. Shark, Hyena and Lion are different from Horse of the set of given words.

Hence, "Horse" is the correct answer.