Question Discussion & Solution

The chemical substance present in bones and teeth is Calcium Phosphate or Ca₃(PO₄)₂.

• Calcium phosphate is fundamental to the formation of bone and teeth.
• It is essential for achieving optimal peak bone mass in the first 2–3 decades of life and for the maintenance of bone in later life.
• Bones:-
  • Bones are mostly made of collagen, a type of protein.
  • Calcium phosphate, a mineral, is the other main component of the bones.
  • Collagen gives the bones a soft framework, while calcium phosphate is what makes them hard and strong.
  • Bones are made of living tissues, so old bone tissue is broken down and removed, and then new tissue is created to replace the old.
• Teeth:-
  • Enamel – the hard, outer layer of your teeth – is made of minerals like calcium phosphate.
  • Enamel is harder than the bones. It's the hardest substance in the whole body.
  • However, unlike the bones, the teeth enamel doesn't contain any living tissues and so can't heal on its own.

The correct answer is Sulphur.

• The sulphur is the eye irritating compound that is released when cutting onions.
• The syn-Propanethial-S-oxide is the chemical irritant produced by an onion.
• This chemical stimulates the eyes' lachrymal glands which release tears.
• Previously scientists used to blame enzyme alinase for the instability of substances in a cut onion.
• In 2002, a study in Japan proved that lachrymatory factor synthase is responsible for irritation of the eyes.

If '+' means 'divide by', '-' means 'add to', '×' means 'subtract from' and '/' means 'multiply by',

{(16 × 6) - (2 / 3)} + (3 - 1)] / 2

Now put the right symbol we get-

= [{(16 - 6) + (2 × 3)} / (3 + 1)] × 2

Now we apply BODMAS rule-

= [{10 + 6} / 4] × 2

= [16 / 4] × 2

= 4 × 2

= 8

Hence, "8" is the correct answer.

The pattern followed here is:

The correct answer is Application Language.

• Application Language is the other name of functional language.

Key Points

• Functional languages have a mathematical style.
• A functional program is constructed by applying functions to arguments.
• Functional languages, such as LISP, ML, and Haskell, are used as research tools in language development, automated mathematical theorem provers, and in commercial projects.
• Other high-level languages are called functional languages.
• The best-known functional language of this type is LISP (List Processing).

Additional Information

• Machine code, also known as machine language, is the elemental language of computers.
  • It is read by the computer's central processing unit (CPU), is composed of digital binary numbers and looks like a very long sequence of zeros and ones.
  • Each CPU has its own specific machine language.
  • The processor reads and handles instructions, which tell the CPU to perform a simple task. Instructions are comprised of a certain number of bits.
• A high-level language is a programming language designed to simplify computer programming.
  • It is "high-level" since it is several steps removed from the actual code run on a computer's processor. 
  • High-level source code contains easy-to-read syntax that is later converted into a low-level language, which can be recognized and run by a specific CPU.
  • A compiler is a language translator that can convert high-level language programs into machine language in one go.
• An assembly language is a low-level programming language in which there is a very strong correspondence between the program's statements and the architecture's machine code instructions.