Explanation

Copyright is a legal tool that protects original works of authorship like art, books, music, and films.

It gives the creator exclusive rights to use and distribute their work.

Explanation

Drought occurs when there is a prolonged absence of rainfall, causing the land to dry up.

It leads to water shortages, crop failure, and dry soil in the affected region.

Explanation

Set A is a subset of B because all elements of A are present in B.

Symbol ⊂ means "is a subset of".

Explanation

Step 1: Calculate the total work hours for four workers

Total work hours = 4 workers × 8 hours = 32 worker-hours

Step 2: Calculate the time required for six workers

Time = Total work hours / Number of workers

= 32 worker-hours / 6 workers

= 5.33 hours

= 5 hours 20 minutes

Explanation

Conduction occurs when heat is transferred through direct contact between particles.

It mostly happens in solids, especially metals, which are good conductors.

Explanation

"To" is a preposition showing direction or movement toward a place.

In the sentence, it links the verb "moved" with the destination "another place."

Explanation

Sharp knives have a smaller contact area, so the same force creates greater pressure.

Higher pressure allows the knife to cut through materials more easily.

Explanation

Let's find the expense per guest:

Expense for 35 guests = 52,500

Expense per guest = 52,500 / 35

= 1,500

Expense for 85 guests:

= 85 × 1,500

= 127,500

Explanation

"Noticed" is the 3rd form (past participle) of the verb "notice."

It is used here with "had" to form the past perfect tense — "had noticed."

Explanation

The OS (e.g., Windows, macOS, Linux) manages all hardware/software operations, including:

• Memory allocation.
• File management.
• Running applications (like MS Word).

Example:

Without an OS (Operating System), a computer cannot boot or execute any program