Explanation

Life promises a lot of pleasure.

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a lot of (Idiom): a large number or amount of somebody/ something

Here, of is the right usage.

because "of" is the preposition used to show somebody/something belongs to a group (a lot of pleasure)

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Explanation

The euro (€) is the currency of the European Union (EU).

¥ represents the Japanese yen,

ƒ signifies a florin, such as the Aruban Florin

Explanation

Becoz without food we get hunger and without sleep we feel weariness.

Explanation

Folding a rectangular paper in half vertically and then horizontally divides it into 4 equal sections.

Explanation

The browser's keeps a list of web pages you have visited during the current session.

Explanation

• The World Wide Web is all the resources and users on the internet that are using the Hypertext Transfer Protocol (HTTP).
• World Wide Web was created by Timothy Berners Lee in 1989 in CERN in Geneva.

Explanation

Explanation: "But" is used to connect contrasting ideas, making it a conjunction.

Explanation

The prime factorization of 72 involves dividing it by its smallest prime factor repeatedly:

1. $72 div 2 = 36$
   
2. $36 div 2 = 18$
   
3. $18 div 2 = 9$
   
4. $9 div 3 = 3$
   
5. $3 div 3 = 1$
   

So, $72=2^3\times 3^2$

Explanation

"To turn the tables" means to change completely the position of disadvantage, often by gaining an advantage in a situation.

This idiom is used when someone shifts from being in a losing position to a winning one.

Explanation

In mathematics, the empty set is the unique set having no elements; its size or cardinality is zero.

Some axiomatic set theories ensure that the empty set exists by including an axiom of empty set, while in other theories, its existence can be deduced.